Add 70/40 and 81/56
1st number: 1 30/40, 2nd number: 1 25/56
70/40 + 81/56 is 179/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
81/56 = 81 × 5/56 × 5 = 405/280 - Add the two like fractions:
490/280 + 405/280 = 490 + 405/280 = 895/280 - 895/280 simplified gives 179/56
- So, 70/40 + 81/56 = 179/56
In mixed form: 311/56
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