Add 12/40 and 42/35
1st number: 12/40, 2nd number: 1 7/35
12/40 + 42/35 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 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 35 × 8 = 280,
42/35 = 42 × 8/35 × 8 = 336/280 - Add the two like fractions:
84/280 + 336/280 = 84 + 336/280 = 420/280 - 420/280 simplified gives 3/2
- So, 12/40 + 42/35 = 3/2
In mixed form: 11/2
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