Add 21/20 and 75/10
1st number: 1 1/20, 2nd number: 7 5/10
21/20 + 75/10 is 171/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
21/20 = 21 × 1/20 × 1 = 21/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
75/10 = 75 × 2/10 × 2 = 150/20 - Add the two like fractions:
21/20 + 150/20 = 21 + 150/20 = 171/20 - So, 21/20 + 75/10 = 171/20
In mixed form: 811/20
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