Add 40/63 and 21/56
40/63 + 21/56 is 509/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
40/63 = 40 × 8/63 × 8 = 320/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504 - Add the two like fractions:
320/504 + 189/504 = 320 + 189/504 = 509/504 - So, 40/63 + 21/56 = 509/504
In mixed form: 15/504
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