Add 7/20 and 49/80
7/20 + 49/80 is 77/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
7/20 = 7 × 4/20 × 4 = 28/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
49/80 = 49 × 1/80 × 1 = 49/80 - Add the two like fractions:
28/80 + 49/80 = 28 + 49/80 = 77/80 - So, 7/20 + 49/80 = 77/80
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