Add 1/42 and 3/70
1/42 + 3/70 is 1/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
1/42 = 1 × 5/42 × 5 = 5/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Add the two like fractions:
5/210 + 9/210 = 5 + 9/210 = 14/210 - 14/210 simplified gives 1/15
- So, 1/42 + 3/70 = 1/15
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