Subtract 48/42 from 45/25, Solve 1 20/25

Subtract 48/42 from 45/25

1^st number: 1 20/25, 2^nd number: 1 6/42

45/25 - 48/42 is 23/35.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 25 × 42 = 1050,
45/25 = 45 × 42/25 × 42 = 1890/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
48/42 = 48 × 25/42 × 25 = 1200/1050
Subtract the two like fractions:
1890/1050 - 1200/1050 = 1890 - 1200/1050 = 690/1050
After reducing the fraction, the answer is 23/35

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