Subtract 18/7 from 2/30, Solve 2/30

Subtract 18/7 from 2/30

1^st number: 2/30, 2^nd number: 2 4/7

2/30 - 18/7 is -263/105.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
2/30 = 2 × 7/30 × 7 = 14/210
Likewise, for the 2nd fraction, since 7 × 30 = 210,
18/7 = 18 × 30/7 × 30 = 540/210
Subtract the two like fractions:
14/210 - 540/210 = 14 - 540/210 = -526/210
After reducing the fraction, the answer is -263/105

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