Add 15/28 and 70/63
1st number: 15/28, 2nd number: 1 7/63
15/28 + 70/63 is 415/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
15/28 = 15 × 9/28 × 9 = 135/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
70/63 = 70 × 4/63 × 4 = 280/252 - Add the two like fractions:
135/252 + 280/252 = 135 + 280/252 = 415/252 - So, 15/28 + 70/63 = 415/252
In mixed form: 1163/252
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