Subtract 24/45 from 30/21, Solve 1 9/21

Subtract 24/45 from 30/21

1^st number: 1 9/21, 2^nd number: 24/45

30/21 - 24/45 is 94/105.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 21 × 15 = 315,
30/21 = 30 × 15/21 × 15 = 450/315
Likewise, for the 2nd fraction, since 45 × 7 = 315,
24/45 = 24 × 7/45 × 7 = 168/315
Subtract the two like fractions:
450/315 - 168/315 = 450 - 168/315 = 282/315
After reducing the fraction, the answer is 94/105

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