Add 40/56 and 42/63
40/56 + 42/63 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
40/56 = 40 × 9/56 × 9 = 360/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
42/63 = 42 × 8/63 × 8 = 336/504 - Add the two like fractions:
360/504 + 336/504 = 360 + 336/504 = 696/504 - 696/504 simplified gives 29/21
- So, 40/56 + 42/63 = 29/21
In mixed form: 18/21
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