Add 42/35 and 20/12
1st number: 1 7/35, 2nd number: 1 8/12
42/35 + 20/12 is 43/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
42/35 = 42 × 12/35 × 12 = 504/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
20/12 = 20 × 35/12 × 35 = 700/420 - Add the two like fractions:
504/420 + 700/420 = 504 + 700/420 = 1204/420 - 1204/420 simplified gives 43/15
- So, 42/35 + 20/12 = 43/15
In mixed form: 213/15
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