Add 3/70 and 4/21
3/70 + 4/21 is 7/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
4/21 = 4 × 10/21 × 10 = 40/210 - Add the two like fractions:
9/210 + 40/210 = 9 + 40/210 = 49/210 - 49/210 simplified gives 7/30
- So, 3/70 + 4/21 = 7/30
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