Add 7/40 and 4/20
7/40 + 4/20 is 3/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
7/40 = 7 × 1/40 × 1 = 7/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
4/20 = 4 × 2/20 × 2 = 8/40 - Add the two like fractions:
7/40 + 8/40 = 7 + 8/40 = 15/40 - 15/40 simplified gives 3/8
- So, 7/40 + 4/20 = 3/8
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