Add 40/56 and 21/63
40/56 + 21/63 is 22/21.
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,
21/63 = 21 × 8/63 × 8 = 168/504 - Add the two like fractions:
360/504 + 168/504 = 360 + 168/504 = 528/504 - 528/504 simplified gives 22/21
- So, 40/56 + 21/63 = 22/21
In mixed form: 11/21
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