Add 70/84 and 54/63
70/84 + 54/63 is 71/42.
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,
70/84 = 70 × 3/84 × 3 = 210/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
54/63 = 54 × 4/63 × 4 = 216/252 - Add the two like fractions:
210/252 + 216/252 = 210 + 216/252 = 426/252 - 426/252 simplified gives 71/42
- So, 70/84 + 54/63 = 71/42
In mixed form: 129/42
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