Add 81/90 and 30/56
81/90 + 30/56 is 201/140.
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,
30/56 = 30 × 45/56 × 45 = 1350/2520 - Add the two like fractions:
2268/2520 + 1350/2520 = 2268 + 1350/2520 = 3618/2520 - 3618/2520 simplified gives 201/140
- So, 81/90 + 30/56 = 201/140
In mixed form: 161/140
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