Add 21/20 and 36/5
1st number: 1 1/20, 2nd number: 7 1/5
21/20 + 36/5 is 33/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 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 5 × 4 = 20,
36/5 = 36 × 4/5 × 4 = 144/20 - Add the two like fractions:
21/20 + 144/20 = 21 + 144/20 = 165/20 - 165/20 simplified gives 33/4
- So, 21/20 + 36/5 = 33/4
In mixed form: 81/4
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