Add 21/20 and 30/12
1st number: 1 1/20, 2nd number: 2 6/12
21/20 + 30/12 is 71/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60 - Add the two like fractions:
63/60 + 150/60 = 63 + 150/60 = 213/60 - 213/60 simplified gives 71/20
- So, 21/20 + 30/12 = 71/20
In mixed form: 311/20
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