Add 84/63 and 90/84
1st number: 1 21/63, 2nd number: 1 6/84
84/63 + 90/84 is 101/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
84/63 = 84 × 4/63 × 4 = 336/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
90/84 = 90 × 3/84 × 3 = 270/252 - Add the two like fractions:
336/252 + 270/252 = 336 + 270/252 = 606/252 - 606/252 simplified gives 101/42
- So, 84/63 + 90/84 = 101/42
In mixed form: 217/42
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