Subtract 45/90 from 40/16, Solve 2 8/16

Subtract 45/90 from 40/16

1^st number: 2 8/16, 2^nd number: 45/90

40/16 - 45/90 is 2/1.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 16 × 45 = 720,
40/16 = 40 × 45/16 × 45 = 1800/720
Likewise, for the 2nd fraction, since 90 × 8 = 720,
45/90 = 45 × 8/90 × 8 = 360/720
Subtract the two like fractions:
1800/720 - 360/720 = 1800 - 360/720 = 1440/720
After reducing the fraction, the answer is 2/1

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