Add 28/63 and 4/21
28/63 + 4/21 is 40/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
28/63 = 28 × 1/63 × 1 = 28/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
4/21 = 4 × 3/21 × 3 = 12/63 - Add the two like fractions:
28/63 + 12/63 = 28 + 12/63 = 40/63 - So, 28/63 + 4/21 = 40/63
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