Add 42/63 and 20/40
42/63 + 20/40 is 7/6.
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,
20/40 = 20 × 63/40 × 63 = 1260/2520 - Add the two like fractions:
1680/2520 + 1260/2520 = 1680 + 1260/2520 = 2940/2520 - 2940/2520 simplified gives 7/6
- So, 42/63 + 20/40 = 7/6
In mixed form: 11/6
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