Add 56/15 and 12/42
1st number: 3 11/15, 2nd number: 12/42
56/15 + 12/42 is 422/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
56/15 = 56 × 14/15 × 14 = 784/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
12/42 = 12 × 5/42 × 5 = 60/210 - Add the two like fractions:
784/210 + 60/210 = 784 + 60/210 = 844/210 - 844/210 simplified gives 422/105
- So, 56/15 + 12/42 = 422/105
In mixed form: 42/105
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