Fraction Word Problems | MathHelp.com - By MathHelp.com
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| 00:0-1 | to solve a fraction word problems such as the one | |
| 00:02 | shown here . Let's first read the problem to see | |
| 00:05 | what it's about on the last math quiz . Terra | |
| 00:09 | answered 5/7 of the problems correctly and Julia answered 7/10 | |
| 00:14 | of them correctly . If each problem was worth the | |
| 00:17 | same amount who got the higher grade . So in | |
| 00:20 | this problem we need to compare the fraction of problems | |
| 00:23 | that terra answered correctly . Mhm 5/7 . Mhm . | |
| 00:32 | With the fraction of problems that Julia answered correctly . | |
| 00:37 | 7/10 . The greater fraction will represent the higher grade | |
| 00:45 | . Notice that 5/7 and 7/10 are unlike fractions . | |
| 00:50 | So we need to find a common denominator . The | |
| 00:53 | common denominator of seven and 10 is the least common | |
| 00:56 | multiple of seven and 10 which is 70 To get | |
| 01:01 | 70 in the denominator of 5/7 . We multiply the | |
| 01:04 | numerator and denominator by 10 to get 50 over 70 | |
| 01:12 | To get 70 in the denominator of 7/10 . We | |
| 01:15 | multiply the numerator and denominator by seven To get 49/70 | |
| 01:22 | . Since 50/70 is greater than 49/75 7th is greater | |
| 01:28 | than 7/10 . So Terra , who answered 5/7 of | |
| 01:33 | the problems , correctly received the higher grade . |
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