Add 30/15 and 10/20
1st number: 2 0/15, 2nd number: 10/20
30/15 + 10/20 is 5/2.
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,
10/20 = 10 × 3/20 × 3 = 30/60 - Add the two like fractions:
120/60 + 30/60 = 120 + 30/60 = 150/60 - 150/60 simplified gives 5/2
- So, 30/15 + 10/20 = 5/2
In mixed form: 21/2
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