Subtract 1/40 from 36/30, Solve 1 6/30

Subtract 1/40 from 36/30

1^st number: 1 6/30, 2^nd number: 1/40

36/30 - 1/40 is 47/40.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 30 × 4 = 120,
36/30 = 36 × 4/30 × 4 = 144/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
1/40 = 1 × 3/40 × 3 = 3/120
Subtract the two like fractions:
144/120 - 3/120 = 144 - 3/120 = 141/120
After reducing the fraction, the answer is 47/40
In mixed form: 17/40

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