Subtract 70/18 from 30/8
1st number: 3 6/8, 2nd number: 3 16/18
30/8 - 70/18 is -5/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
30/8 = 30 × 9/8 × 9 = 270/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
70/18 = 70 × 4/18 × 4 = 280/72 - Subtract the two like fractions:
270/72 - 280/72 = 270 - 280/72 = -10/72 - After reducing the fraction, the answer is -5/36
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