Subtract 1/75 from 40/21, Solve 1 19/21

Subtract 1/75 from 40/21

1^st number: 1 19/21, 2^nd number: 1/75

40/21 - 1/75 is 331/175.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525

Next, find the equivalent fraction of both fractional numbers with denominator 525
For the 1st fraction, since 21 × 25 = 525,
40/21 = 40 × 25/21 × 25 = 1000/525
Likewise, for the 2nd fraction, since 75 × 7 = 525,
1/75 = 1 × 7/75 × 7 = 7/525
Subtract the two like fractions:
1000/525 - 7/525 = 1000 - 7/525 = 993/525
After reducing the fraction, the answer is 331/175
In mixed form: 1156/175

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