Add 20/42 and 30/15
1st number: 20/42, 2nd number: 2 0/15
20/42 + 30/15 is 52/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
30/15 = 30 × 14/15 × 14 = 420/210 - Add the two like fractions:
100/210 + 420/210 = 100 + 420/210 = 520/210 - 520/210 simplified gives 52/21
- So, 20/42 + 30/15 = 52/21
In mixed form: 210/21
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