Add 4/5 and 72/80
4/5 + 72/80 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
4/5 = 4 × 16/5 × 16 = 64/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
72/80 = 72 × 1/80 × 1 = 72/80 - Add the two like fractions:
64/80 + 72/80 = 64 + 72/80 = 136/80 - 136/80 simplified gives 17/10
- So, 4/5 + 72/80 = 17/10
In mixed form: 17/10
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