Add 21/20 and 5/4
1st number: 1 1/20, 2nd number: 1 1/4
21/20 + 5/4 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 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 4 × 5 = 20,
5/4 = 5 × 5/4 × 5 = 25/20 - Add the two like fractions:
21/20 + 25/20 = 21 + 25/20 = 46/20 - 46/20 simplified gives 23/10
- So, 21/20 + 5/4 = 23/10
In mixed form: 23/10
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