Subtract 20/40 from 45/6, Solve 7 3/6

Subtract 20/40 from 45/6

1^st number: 7 3/6, 2^nd number: 20/40

45/6 - 20/40 is 7/1.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 6 × 20 = 120,
45/6 = 45 × 20/6 × 20 = 900/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120
Subtract the two like fractions:
900/120 - 60/120 = 900 - 60/120 = 840/120
After reducing the fraction, the answer is 7/1

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