Subtract 24/6 from 30/70, Solve 30/70

Subtract 24/6 from 30/70

1^st number: 30/70, 2^nd number: 4 0/6

30/70 - 24/6 is -25/7.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 6 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
30/70 = 30 × 3/70 × 3 = 90/210
Likewise, for the 2nd fraction, since 6 × 35 = 210,
24/6 = 24 × 35/6 × 35 = 840/210
Subtract the two like fractions:
90/210 - 840/210 = 90 - 840/210 = -750/210
After reducing the fraction, the answer is -25/7

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