Subtract 60/40 from 42/16
1st number: 2 10/16, 2nd number: 1 20/40
42/16 - 60/40 is 9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
60/40 = 60 × 2/40 × 2 = 120/80 - Subtract the two like fractions:
210/80 - 120/80 = 210 - 120/80 = 90/80 - After reducing the fraction, the answer is 9/8
- In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16-60/40 42/32-60/40 42/16-60/80 42/48-60/40 42/80-60/40