Add 72/7 and 80/63
1st number: 10 2/7, 2nd number: 1 17/63
72/7 + 80/63 is 104/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
72/7 = 72 × 9/7 × 9 = 648/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
80/63 = 80 × 1/63 × 1 = 80/63 - Add the two like fractions:
648/63 + 80/63 = 648 + 80/63 = 728/63 - 728/63 simplified gives 104/9
- So, 72/7 + 80/63 = 104/9
In mixed form: 115/9
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