Add 18/40 and 4/56
18/40 + 4/56 is 73/140.
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,
18/40 = 18 × 7/40 × 7 = 126/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
4/56 = 4 × 5/56 × 5 = 20/280 - Add the two like fractions:
126/280 + 20/280 = 126 + 20/280 = 146/280 - 146/280 simplified gives 73/140
- So, 18/40 + 4/56 = 73/140
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