Subtract 84/40 from 8/6, Solve 1 2/6

Subtract 84/40 from 8/6

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

8/6 - 84/40 is -23/30.

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,
8/6 = 8 × 20/6 × 20 = 160/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
84/40 = 84 × 3/40 × 3 = 252/120
Subtract the two like fractions:
160/120 - 252/120 = 160 - 252/120 = -92/120
After reducing the fraction, the answer is -23/30

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