Add 42/30 and 21/15
1st number: 1 12/30, 2nd number: 1 6/15
42/30 + 21/15 is 14/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
42/30 = 42 × 1/30 × 1 = 42/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
21/15 = 21 × 2/15 × 2 = 42/30 - Add the two like fractions:
42/30 + 42/30 = 42 + 42/30 = 84/30 - 84/30 simplified gives 14/5
- So, 42/30 + 21/15 = 14/5
In mixed form: 24/5
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