Add 3/4 and 4/5
3/4 + 4/5 is 31/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
3/4 = 3 × 5/4 × 5 = 15/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
4/5 = 4 × 4/5 × 4 = 16/20 - Add the two like fractions:
15/20 + 16/20 = 15 + 16/20 = 31/20 - So, 3/4 + 4/5 = 31/20
In mixed form: 111/20
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