Add 15/9 and 9/7
1st number: 1 6/9, 2nd number: 1 2/7
15/9 + 9/7 is 62/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
15/9 = 15 × 7/9 × 7 = 105/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
9/7 = 9 × 9/7 × 9 = 81/63 - Add the two like fractions:
105/63 + 81/63 = 105 + 81/63 = 186/63 - 186/63 simplified gives 62/21
- So, 15/9 + 9/7 = 62/21
In mixed form: 220/21
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