Add 21/80 and 40/20
1st number: 21/80, 2nd number: 2 0/20
21/80 + 40/20 is 181/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
21/80 = 21 × 1/80 × 1 = 21/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
40/20 = 40 × 4/20 × 4 = 160/80 - Add the two like fractions:
21/80 + 160/80 = 21 + 160/80 = 181/80 - So, 21/80 + 40/20 = 181/80
In mixed form: 221/80
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