Add 15/84 and 90/63
1st number: 15/84, 2nd number: 1 27/63
15/84 + 90/63 is 45/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
15/84 = 15 × 3/84 × 3 = 45/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
90/63 = 90 × 4/63 × 4 = 360/252 - Add the two like fractions:
45/252 + 360/252 = 45 + 360/252 = 405/252 - 405/252 simplified gives 45/28
- So, 15/84 + 90/63 = 45/28
In mixed form: 117/28
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