Add 7/40 and 28/80
7/40 + 28/80 is 21/40.
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,
7/40 = 7 × 2/40 × 2 = 14/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
28/80 = 28 × 1/80 × 1 = 28/80 - Add the two like fractions:
14/80 + 28/80 = 14 + 28/80 = 42/80 - 42/80 simplified gives 21/40
- So, 7/40 + 28/80 = 21/40
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