Subtract 90/30 from 8/16
1st number: 8/16, 2nd number: 3 0/30
8/16 - 90/30 is -5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
8/16 = 8 × 15/16 × 15 = 120/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
90/30 = 90 × 8/30 × 8 = 720/240 - Subtract the two like fractions:
120/240 - 720/240 = 120 - 720/240 = -600/240 - After reducing the fraction, the answer is -5/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/32-90/30 8/16-90/60 24/16-90/30 8/48-90/30 40/16-90/30 8/80-90/30 56/16-90/30