Add 70/84 and 35/90
70/84 + 35/90 is 11/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
70/84 = 70 × 15/84 × 15 = 1050/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
35/90 = 35 × 14/90 × 14 = 490/1260 - Add the two like fractions:
1050/1260 + 490/1260 = 1050 + 490/1260 = 1540/1260 - 1540/1260 simplified gives 11/9
- So, 70/84 + 35/90 = 11/9
In mixed form: 12/9
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