Subtract 28/30 from 9/35, Solve 9/35

Subtract 28/30 from 9/35

9/35 - 28/30 is -71/105.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 35 × 6 = 210,
9/35 = 9 × 6/35 × 6 = 54/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210
Subtract the two like fractions:
54/210 - 196/210 = 54 - 196/210 = -142/210
After reducing the fraction, the answer is -71/105

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