Subtract 30/6 from 84/40, Solve 2 4/40

Subtract 30/6 from 84/40

1^st number: 2 4/40, 2^nd number: 5 0/6

84/40 - 30/6 is -29/10.

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

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 40 × 3 = 120,
84/40 = 84 × 3/40 × 3 = 252/120
Likewise, for the 2nd fraction, since 6 × 20 = 120,
30/6 = 30 × 20/6 × 20 = 600/120
Subtract the two like fractions:
252/120 - 600/120 = 252 - 600/120 = -348/120
After reducing the fraction, the answer is -29/10

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