Add 3/40 and 81/56
1st number: 3/40, 2nd number: 1 25/56
3/40 + 81/56 is 213/140.
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,
3/40 = 3 × 7/40 × 7 = 21/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
81/56 = 81 × 5/56 × 5 = 405/280 - Add the two like fractions:
21/280 + 405/280 = 21 + 405/280 = 426/280 - 426/280 simplified gives 213/140
- So, 3/40 + 81/56 = 213/140
In mixed form: 173/140
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