Add 8/42 and 20/15
1st number: 8/42, 2nd number: 1 5/15
8/42 + 20/15 is 32/21.
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,
8/42 = 8 × 5/42 × 5 = 40/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
20/15 = 20 × 14/15 × 14 = 280/210 - Add the two like fractions:
40/210 + 280/210 = 40 + 280/210 = 320/210 - 320/210 simplified gives 32/21
- So, 8/42 + 20/15 = 32/21
In mixed form: 111/21
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