Subtract 45/56 from 10/30, Solve 10/30

Subtract 45/56 from 10/30

10/30 - 45/56 is -79/168.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 30 × 28 = 840,
10/30 = 10 × 28/30 × 28 = 280/840
Likewise, for the 2nd fraction, since 56 × 15 = 840,
45/56 = 45 × 15/56 × 15 = 675/840
Subtract the two like fractions:
280/840 - 675/840 = 280 - 675/840 = -395/840
After reducing the fraction, the answer is -79/168

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