Subtract 20/42 from 75/3, Solve 25 0/3

Subtract 20/42 from 75/3

1^st number: 25 0/3, 2^nd number: 20/42

75/3 - 20/42 is 515/21.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 3 × 14 = 42,
75/3 = 75 × 14/3 × 14 = 1050/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
20/42 = 20 × 1/42 × 1 = 20/42
Subtract the two like fractions:
1050/42 - 20/42 = 1050 - 20/42 = 1030/42
After reducing the fraction, the answer is 515/21
In mixed form: 2411/21

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