Add 20/36 and 21/56
20/36 + 21/56 is 67/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 36 × 14 = 504,
20/36 = 20 × 14/36 × 14 = 280/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
21/56 = 21 × 9/56 × 9 = 189/504 - Add the two like fractions:
280/504 + 189/504 = 280 + 189/504 = 469/504 - 469/504 simplified gives 67/72
- So, 20/36 + 21/56 = 67/72
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