Add 8/7 and 72/9
1st number: 1 1/7, 2nd number: 8 0/9
8/7 + 72/9 is 64/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
8/7 = 8 × 9/7 × 9 = 72/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
72/9 = 72 × 7/9 × 7 = 504/63 - Add the two like fractions:
72/63 + 504/63 = 72 + 504/63 = 576/63 - 576/63 simplified gives 64/7
- So, 8/7 + 72/9 = 64/7
In mixed form: 91/7
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