Add 90/84 and 20/63
1st number: 1 6/84, 2nd number: 20/63
90/84 + 20/63 is 25/18.
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,
20/63 = 20 × 4/63 × 4 = 80/252 - Add the two like fractions:
270/252 + 80/252 = 270 + 80/252 = 350/252 - 350/252 simplified gives 25/18
- So, 90/84 + 20/63 = 25/18
In mixed form: 17/18
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