Add 15/7 and 72/8
1st number: 2 1/7, 2nd number: 9 0/8
15/7 + 72/8 is 78/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
15/7 = 15 × 8/7 × 8 = 120/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
72/8 = 72 × 7/8 × 7 = 504/56 - Add the two like fractions:
120/56 + 504/56 = 120 + 504/56 = 624/56 - 624/56 simplified gives 78/7
- So, 15/7 + 72/8 = 78/7
In mixed form: 111/7
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