Subtract 35/40 from 4/70
4/70 - 35/40 is -229/280.
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,
4/70 = 4 × 4/70 × 4 = 16/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
35/40 = 35 × 7/40 × 7 = 245/280 - Subtract the two like fractions:
16/280 - 245/280 = 16 - 245/280 = -229/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/70-35/40 4/70-70/40 4/70-35/80 12/70-35/40 20/70-35/40 28/70-35/40