Subtract 35/42 from 6/80
6/80 - 35/42 is -91/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
6/80 = 6 × 21/80 × 21 = 126/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
35/42 = 35 × 40/42 × 40 = 1400/1680 - Subtract the two like fractions:
126/1680 - 1400/1680 = 126 - 1400/1680 = -1274/1680 - After reducing the fraction, the answer is -91/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80-35/42 6/80-70/42 6/80-35/84 18/80-35/42 30/80-35/42 42/80-35/42