Add 28/36 and 20/63
28/36 + 20/63 is 23/21.
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,
28/36 = 28 × 7/36 × 7 = 196/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Add the two like fractions:
196/252 + 80/252 = 196 + 80/252 = 276/252 - 276/252 simplified gives 23/21
- So, 28/36 + 20/63 = 23/21
In mixed form: 12/21
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