Subtract 4/40 from 42/35
1st number: 1 7/35, 2nd number: 4/40
42/35 - 4/40 is 11/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
42/35 = 42 × 8/35 × 8 = 336/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
4/40 = 4 × 7/40 × 7 = 28/280 - Subtract the two like fractions:
336/280 - 28/280 = 336 - 28/280 = 308/280 - After reducing the fraction, the answer is 11/10
- In mixed form: 11/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35-4/40 42/35-8/40 42/70-4/40 42/35-4/80 42/35-12/40 42/35-20/40 42/35-28/40