Add 45/56 and 18/40
45/56 + 18/40 is 351/280.
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,
45/56 = 45 × 5/56 × 5 = 225/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Add the two like fractions:
225/280 + 126/280 = 225 + 126/280 = 351/280 - So, 45/56 + 18/40 = 351/280
In mixed form: 171/280
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