Add 40/63 and 21/35
40/63 + 21/35 is 389/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 35 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
40/63 = 40 × 5/63 × 5 = 200/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
21/35 = 21 × 9/35 × 9 = 189/315 - Add the two like fractions:
200/315 + 189/315 = 200 + 189/315 = 389/315 - So, 40/63 + 21/35 = 389/315
In mixed form: 174/315
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