# 4.NF.B.3.C Lesson Plans

Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

## Coherence Map of 4.NF.B.3.C

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#### Standard Description of 4.NF.B.3.C

Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.

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4.NF.B.3.C

## TOPICS RELATED TO ADDING AND SUBTRACTING MIXED NUMBERS

### What are the rules to adding and subtracting fractions?

Subtracting fractions: if the denominators are not the same, you have to find the not unusual denominator by using locating the least common a couple of (lcm). multiplying fractions: you can multiply both the numerators and denominators, whether or not they are not unusual or no longer. step—pass multiply (see if there are not unusual multiples).

### How do you write the sum of a mixed number?

First, write the mixed number as a sum of a whole number and a proper fraction. then write the two components with common denominator , and add. after you're used to this, you could use a shortcut technique: 1) multiply the whole part by means of the denominator of the fractional part, and add the numerator of the fractional element.

### How do you subtract whole numbers with mixed numbers?

steps Convert the whole number to a fragment. to do this, deliver the entire number a denominator of one. ... Convert to fractions of like denominators. the original fraction's denominator is also the least common denominator (lcd) of the two fractions. ... Subtract the numerators. ... Convert to a mixed number (non-compulsory). 