Subtract 15/90 from 2/35, Solve 2/35

Subtract 15/90 from 2/35

2/35 - 15/90 is -23/210.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 35 × 18 = 630,
2/35 = 2 × 18/35 × 18 = 36/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
15/90 = 15 × 7/90 × 7 = 105/630
Subtract the two like fractions:
36/630 - 105/630 = 36 - 105/630 = -69/630
After reducing the fraction, the answer is -23/210

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