Add 70/84 and 45/63
70/84 + 45/63 is 65/42.
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,
45/63 = 45 × 4/63 × 4 = 180/252 - Add the two like fractions:
210/252 + 180/252 = 210 + 180/252 = 390/252 - 390/252 simplified gives 65/42
- So, 70/84 + 45/63 = 65/42
In mixed form: 123/42
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