Add 28/63 and 63/21
1st number: 28/63, 2nd number: 3 0/21
28/63 + 63/21 is 31/9.
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,
63/21 = 63 × 3/21 × 3 = 189/63 - Add the two like fractions:
28/63 + 189/63 = 28 + 189/63 = 217/63 - 217/63 simplified gives 31/9
- So, 28/63 + 63/21 = 31/9
In mixed form: 34/9
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