Subtract 42/80 from 10/35, Solve 10/35

Subtract 42/80 from 10/35

10/35 - 42/80 is -67/280.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 35 × 16 = 560,
10/35 = 10 × 16/35 × 16 = 160/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
42/80 = 42 × 7/80 × 7 = 294/560
Subtract the two like fractions:
160/560 - 294/560 = 160 - 294/560 = -134/560
After reducing the fraction, the answer is -67/280

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