Subtract 56/90 from 42/16
1st number: 2 10/16, 2nd number: 56/90
42/16 - 56/90 is 721/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
42/16 = 42 × 45/16 × 45 = 1890/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
56/90 = 56 × 8/90 × 8 = 448/720 - Subtract the two like fractions:
1890/720 - 448/720 = 1890 - 448/720 = 1442/720 - After reducing the fraction, the answer is 721/360
- In mixed form: 21/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16-56/90 42/32-56/90 42/48-56/90 42/80-56/90