Add 15/10 and 42/20
1st number: 1 5/10, 2nd number: 2 2/20
15/10 + 42/20 is 18/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
42/20 = 42 × 1/20 × 1 = 42/20 - Add the two like fractions:
30/20 + 42/20 = 30 + 42/20 = 72/20 - 72/20 simplified gives 18/5
- So, 15/10 + 42/20 = 18/5
In mixed form: 33/5
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