Subtract 42/10 from 45/16
1st number: 2 13/16, 2nd number: 4 2/10
45/16 - 42/10 is -111/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
45/16 = 45 × 5/16 × 5 = 225/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
42/10 = 42 × 8/10 × 8 = 336/80 - Subtract the two like fractions:
225/80 - 336/80 = 225 - 336/80 = -111/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16-42/10 45/16-84/10 45/32-42/10 45/16-42/20 45/48-42/10 45/16-42/30 45/80-42/10 45/16-42/50 45/16-42/70