Add 21/5 and 1/20
1st number: 4 1/5, 2nd number: 1/20
21/5 + 1/20 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
21/5 = 21 × 4/5 × 4 = 84/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
1/20 = 1 × 1/20 × 1 = 1/20 - Add the two like fractions:
84/20 + 1/20 = 84 + 1/20 = 85/20 - 85/20 simplified gives 17/4
- So, 21/5 + 1/20 = 17/4
In mixed form: 41/4
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