Add 81/90 and 70/28
1st number: 81/90, 2nd number: 2 14/28
81/90 + 70/28 is 17/5.
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,
81/90 = 81 × 14/90 × 14 = 1134/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
70/28 = 70 × 45/28 × 45 = 3150/1260 - Add the two like fractions:
1134/1260 + 3150/1260 = 1134 + 3150/1260 = 4284/1260 - 4284/1260 simplified gives 17/5
- So, 81/90 + 70/28 = 17/5
In mixed form: 32/5
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