Subtract 42/24 from 30/70
1st number: 30/70, 2nd number: 1 18/24
30/70 - 42/24 is -37/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
30/70 = 30 × 12/70 × 12 = 360/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
42/24 = 42 × 35/24 × 35 = 1470/840 - Subtract the two like fractions:
360/840 - 1470/840 = 360 - 1470/840 = -1110/840 - After reducing the fraction, the answer is -37/28
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