Add 42/63 and 10/35
42/63 + 10/35 is 20/21.
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,
42/63 = 42 × 5/63 × 5 = 210/315 - Likewise, for the 2nd fraction, since 35 × 9 = 315,
10/35 = 10 × 9/35 × 9 = 90/315 - Add the two like fractions:
210/315 + 90/315 = 210 + 90/315 = 300/315 - 300/315 simplified gives 20/21
- So, 42/63 + 10/35 = 20/21
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