Add 4/15 and 21/63
4/15 + 21/63 is 3/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
4/15 = 4 × 21/15 × 21 = 84/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
21/63 = 21 × 5/63 × 5 = 105/315 - Add the two like fractions:
84/315 + 105/315 = 84 + 105/315 = 189/315 - 189/315 simplified gives 3/5
- So, 4/15 + 21/63 = 3/5
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