Subtract 72/9 from 40/35, Solve 1 5/35

Subtract 72/9 from 40/35

1^st number: 1 5/35, 2^nd number: 8 0/9

40/35 - 72/9 is -48/7.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 35 × 9 = 315,
40/35 = 40 × 9/35 × 9 = 360/315
Likewise, for the 2nd fraction, since 9 × 35 = 315,
72/9 = 72 × 35/9 × 35 = 2520/315
Subtract the two like fractions:
360/315 - 2520/315 = 360 - 2520/315 = -2160/315
After reducing the fraction, the answer is -48/7

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