Add 21/60 and 80/20
1st number: 21/60, 2nd number: 4 0/20
21/60 + 80/20 is 87/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
80/20 = 80 × 3/20 × 3 = 240/60 - Add the two like fractions:
21/60 + 240/60 = 21 + 240/60 = 261/60 - 261/60 simplified gives 87/20
- So, 21/60 + 80/20 = 87/20
In mixed form: 47/20
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