Add 63/21 and 15/28
1st number: 3 0/21, 2nd number: 15/28
63/21 + 15/28 is 99/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
63/21 = 63 × 4/21 × 4 = 252/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
15/28 = 15 × 3/28 × 3 = 45/84 - Add the two like fractions:
252/84 + 45/84 = 252 + 45/84 = 297/84 - 297/84 simplified gives 99/28
- So, 63/21 + 15/28 = 99/28
In mixed form: 315/28
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