Add 3/5 and 42/80
3/5 + 42/80 is 9/8.
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,
3/5 = 3 × 16/5 × 16 = 48/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Add the two like fractions:
48/80 + 42/80 = 48 + 42/80 = 90/80 - 90/80 simplified gives 9/8
- So, 3/5 + 42/80 = 9/8
In mixed form: 11/8
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