Add 15/7 and 20/72
1st number: 2 1/7, 2nd number: 20/72
15/7 + 20/72 is 305/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
15/7 = 15 × 72/7 × 72 = 1080/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
20/72 = 20 × 7/72 × 7 = 140/504 - Add the two like fractions:
1080/504 + 140/504 = 1080 + 140/504 = 1220/504 - 1220/504 simplified gives 305/126
- So, 15/7 + 20/72 = 305/126
In mixed form: 253/126
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