Add 20/56 and 21/36
20/56 + 21/36 is 79/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 36 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
20/56 = 20 × 9/56 × 9 = 180/504 - Likewise, for the 2nd fraction, since 36 × 14 = 504,
21/36 = 21 × 14/36 × 14 = 294/504 - Add the two like fractions:
180/504 + 294/504 = 180 + 294/504 = 474/504 - 474/504 simplified gives 79/84
- So, 20/56 + 21/36 = 79/84
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