Add 3/40 and 15/80
3/40 + 15/80 is 21/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
3/40 = 3 × 2/40 × 2 = 6/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
15/80 = 15 × 1/80 × 1 = 15/80 - Add the two like fractions:
6/80 + 15/80 = 6 + 15/80 = 21/80 - So, 3/40 + 15/80 = 21/80
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