Add 90/84 and 60/63
1st number: 1 6/84, 2nd number: 60/63
90/84 + 60/63 is 85/42.
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,
90/84 = 90 × 3/84 × 3 = 270/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
60/63 = 60 × 4/63 × 4 = 240/252 - Add the two like fractions:
270/252 + 240/252 = 270 + 240/252 = 510/252 - 510/252 simplified gives 85/42
- So, 90/84 + 60/63 = 85/42
In mixed form: 21/42
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