Add 5/20 and 15/40
5/20 + 15/40 is 5/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
5/20 = 5 × 2/20 × 2 = 10/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
15/40 = 15 × 1/40 × 1 = 15/40 - Add the two like fractions:
10/40 + 15/40 = 10 + 15/40 = 25/40 - 25/40 simplified gives 5/8
- So, 5/20 + 15/40 = 5/8
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