Add 42/40 and 72/35
1st number: 1 2/40, 2nd number: 2 2/35
42/40 + 72/35 is 87/28.
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,
42/40 = 42 × 7/40 × 7 = 294/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
72/35 = 72 × 8/35 × 8 = 576/280 - Add the two like fractions:
294/280 + 576/280 = 294 + 576/280 = 870/280 - 870/280 simplified gives 87/28
- So, 42/40 + 72/35 = 87/28
In mixed form: 33/28
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