Add 42/35 and 18/40
1st number: 1 7/35, 2nd number: 18/40
42/35 + 18/40 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
42/35 = 42 × 8/35 × 8 = 336/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Add the two like fractions:
336/280 + 126/280 = 336 + 126/280 = 462/280 - 462/280 simplified gives 33/20
- So, 42/35 + 18/40 = 33/20
In mixed form: 113/20
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