Add 81/5 and 21/63
1st number: 16 1/5, 2nd number: 21/63
81/5 + 21/63 is 248/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
81/5 = 81 × 63/5 × 63 = 5103/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
21/63 = 21 × 5/63 × 5 = 105/315 - Add the two like fractions:
5103/315 + 105/315 = 5103 + 105/315 = 5208/315 - 5208/315 simplified gives 248/15
- So, 81/5 + 21/63 = 248/15
In mixed form: 168/15
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