Subtract 8/24 from 7/70
7/70 - 8/24 is -7/30.
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,
7/70 = 7 × 12/70 × 12 = 84/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
8/24 = 8 × 35/24 × 35 = 280/840 - Subtract the two like fractions:
84/840 - 280/840 = 84 - 280/840 = -196/840 - After reducing the fraction, the answer is -7/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70-8/24 7/70-16/24 7/70-8/48 21/70-8/24 7/70-8/72 35/70-8/24 7/70-40/24 49/70-8/24 7/70-56/24