Add 42/63 and 16/40
42/63 + 16/40 is 16/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
42/63 = 42 × 40/63 × 40 = 1680/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
16/40 = 16 × 63/40 × 63 = 1008/2520 - Add the two like fractions:
1680/2520 + 1008/2520 = 1680 + 1008/2520 = 2688/2520 - 2688/2520 simplified gives 16/15
- So, 42/63 + 16/40 = 16/15
In mixed form: 11/15
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