Add 12/42 and 21/35
12/42 + 21/35 is 31/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
12/42 = 12 × 5/42 × 5 = 60/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
21/35 = 21 × 6/35 × 6 = 126/210 - Add the two like fractions:
60/210 + 126/210 = 60 + 126/210 = 186/210 - 186/210 simplified gives 31/35
- So, 12/42 + 21/35 = 31/35
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