Subtract 48/40 from 8/70
1st number: 8/70, 2nd number: 1 8/40
8/70 - 48/40 is -38/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
8/70 = 8 × 4/70 × 4 = 32/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
48/40 = 48 × 7/40 × 7 = 336/280 - Subtract the two like fractions:
32/280 - 336/280 = 32 - 336/280 = -304/280 - After reducing the fraction, the answer is -38/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/70-48/40 8/70-96/40 8/70-48/80 24/70-48/40 40/70-48/40 56/70-48/40