Add 20/36 and 40/63
20/36 + 40/63 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
20/36 = 20 × 7/36 × 7 = 140/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
40/63 = 40 × 4/63 × 4 = 160/252 - Add the two like fractions:
140/252 + 160/252 = 140 + 160/252 = 300/252 - 300/252 simplified gives 25/21
- So, 20/36 + 40/63 = 25/21
In mixed form: 14/21
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