Add 81/90 and 70/56
1st number: 81/90, 2nd number: 1 14/56
81/90 + 70/56 is 43/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
81/90 = 81 × 28/90 × 28 = 2268/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
70/56 = 70 × 45/56 × 45 = 3150/2520 - Add the two like fractions:
2268/2520 + 3150/2520 = 2268 + 3150/2520 = 5418/2520 - 5418/2520 simplified gives 43/20
- So, 81/90 + 70/56 = 43/20
In mixed form: 23/20
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