Subtract 45/16 from 40/15, Solve 2 10/15

Subtract 45/16 from 40/15

1^st number: 2 10/15, 2^nd number: 2 13/16

40/15 - 45/16 is -7/48.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 15 × 16 = 240,
40/15 = 40 × 16/15 × 16 = 640/240
Likewise, for the 2nd fraction, since 16 × 15 = 240,
45/16 = 45 × 15/16 × 15 = 675/240
Subtract the two like fractions:
640/240 - 675/240 = 640 - 675/240 = -35/240
After reducing the fraction, the answer is -7/48

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