Subtract 1/60 from 40/70
40/70 - 1/60 is 233/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
40/70 = 40 × 6/70 × 6 = 240/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
1/60 = 1 × 7/60 × 7 = 7/420 - Subtract the two like fractions:
240/420 - 7/420 = 240 - 7/420 = 233/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70-1/60 40/70-2/60 40/70-3/60 40/70-5/60 40/70-7/60