Add 12/40 and 42/7
1st number: 12/40, 2nd number: 6 0/7
12/40 + 42/7 is 63/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
42/7 = 42 × 40/7 × 40 = 1680/280 - Add the two like fractions:
84/280 + 1680/280 = 84 + 1680/280 = 1764/280 - 1764/280 simplified gives 63/10
- So, 12/40 + 42/7 = 63/10
In mixed form: 63/10
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