Subtract 70/48 from 20/75, Solve 20/75

Subtract 70/48 from 20/75

1^st number: 20/75, 2^nd number: 1 22/48

20/75 - 70/48 is -143/120.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 48 is 1200

Next, find the equivalent fraction of both fractional numbers with denominator 1200
For the 1st fraction, since 75 × 16 = 1200,
20/75 = 20 × 16/75 × 16 = 320/1200
Likewise, for the 2nd fraction, since 48 × 25 = 1200,
70/48 = 70 × 25/48 × 25 = 1750/1200
Subtract the two like fractions:
320/1200 - 1750/1200 = 320 - 1750/1200 = -1430/1200
After reducing the fraction, the answer is -143/120

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