Add 84/63 and 8/7
1st number: 1 21/63, 2nd number: 1 1/7
84/63 + 8/7 is 52/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
84/63 = 84 × 1/63 × 1 = 84/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
8/7 = 8 × 9/7 × 9 = 72/63 - Add the two like fractions:
84/63 + 72/63 = 84 + 72/63 = 156/63 - 156/63 simplified gives 52/21
- So, 84/63 + 8/7 = 52/21
In mixed form: 210/21
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