Add 25/42 and 8/15
25/42 + 8/15 is 79/70.
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,
25/42 = 25 × 5/42 × 5 = 125/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
8/15 = 8 × 14/15 × 14 = 112/210 - Add the two like fractions:
125/210 + 112/210 = 125 + 112/210 = 237/210 - 237/210 simplified gives 79/70
- So, 25/42 + 8/15 = 79/70
In mixed form: 19/70
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