Add 30/15 and 21/20
1st number: 2 0/15, 2nd number: 1 1/20
30/15 + 21/20 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
30/15 = 30 × 4/15 × 4 = 120/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Add the two like fractions:
120/60 + 63/60 = 120 + 63/60 = 183/60 - 183/60 simplified gives 61/20
- So, 30/15 + 21/20 = 61/20
In mixed form: 31/20
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