Add 3/42 and 5/70
3/42 + 5/70 is 1/7.
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,
3/42 = 3 × 5/42 × 5 = 15/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
5/70 = 5 × 3/70 × 3 = 15/210 - Add the two like fractions:
15/210 + 15/210 = 15 + 15/210 = 30/210 - 30/210 simplified gives 1/7
- So, 3/42 + 5/70 = 1/7
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