Add 4/42 and 21/70
4/42 + 21/70 is 83/210.
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,
4/42 = 4 × 5/42 × 5 = 20/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
21/70 = 21 × 3/70 × 3 = 63/210 - Add the two like fractions:
20/210 + 63/210 = 20 + 63/210 = 83/210 - So, 4/42 + 21/70 = 83/210
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