Subtract 28/70 from 15/50, Solve 15/50

Subtract 28/70 from 15/50

15/50 - 28/70 is -1/10.

Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350

Next, find the equivalent fraction of both fractional numbers with denominator 350
For the 1st fraction, since 50 × 7 = 350,
15/50 = 15 × 7/50 × 7 = 105/350
Likewise, for the 2nd fraction, since 70 × 5 = 350,
28/70 = 28 × 5/70 × 5 = 140/350
Subtract the two like fractions:
105/350 - 140/350 = 105 - 140/350 = -35/350
After reducing the fraction, the answer is -1/10

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