Add 81/56 and 45/40
1st number: 1 25/56, 2nd number: 1 5/40
81/56 + 45/40 is 18/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
81/56 = 81 × 5/56 × 5 = 405/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
45/40 = 45 × 7/40 × 7 = 315/280 - Add the two like fractions:
405/280 + 315/280 = 405 + 315/280 = 720/280 - 720/280 simplified gives 18/7
- So, 81/56 + 45/40 = 18/7
In mixed form: 24/7
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