Add 15/80 and 28/40
15/80 + 28/40 is 71/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
15/80 = 15 × 1/80 × 1 = 15/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
28/40 = 28 × 2/40 × 2 = 56/80 - Add the two like fractions:
15/80 + 56/80 = 15 + 56/80 = 71/80 - So, 15/80 + 28/40 = 71/80
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