Subtract 49/6 from 42/40, Solve 1 2/40

Subtract 49/6 from 42/40

1^st number: 1 2/40, 2^nd number: 8 1/6

42/40 - 49/6 is -427/60.

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,
42/40 = 42 × 3/40 × 3 = 126/120
Likewise, for the 2nd fraction, since 6 × 20 = 120,
49/6 = 49 × 20/6 × 20 = 980/120
Subtract the two like fractions:
126/120 - 980/120 = 126 - 980/120 = -854/120
After reducing the fraction, the answer is -427/60

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