Add 70/90 and 63/28
1st number: 70/90, 2nd number: 2 7/28
70/90 + 63/28 is 109/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
70/90 = 70 × 14/90 × 14 = 980/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
63/28 = 63 × 45/28 × 45 = 2835/1260 - Add the two like fractions:
980/1260 + 2835/1260 = 980 + 2835/1260 = 3815/1260 - 3815/1260 simplified gives 109/36
- So, 70/90 + 63/28 = 109/36
In mixed form: 31/36
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