Subtract 30/84 from 1/35, Solve 1/35

Subtract 30/84 from 1/35

1/35 - 30/84 is -23/70.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 35 × 12 = 420,
1/35 = 1 × 12/35 × 12 = 12/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420
Subtract the two like fractions:
12/420 - 150/420 = 12 - 150/420 = -138/420
After reducing the fraction, the answer is -23/70

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