Add 21/5 and 42/63
1st number: 4 1/5, 2nd number: 42/63
21/5 + 42/63 is 73/15.
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,
21/5 = 21 × 63/5 × 63 = 1323/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
42/63 = 42 × 5/63 × 5 = 210/315 - Add the two like fractions:
1323/315 + 210/315 = 1323 + 210/315 = 1533/315 - 1533/315 simplified gives 73/15
- So, 21/5 + 42/63 = 73/15
In mixed form: 413/15
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