Subtract 18/16 from 8/45
1st number: 8/45, 2nd number: 1 2/16
8/45 - 18/16 is -341/360.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
8/45 = 8 × 16/45 × 16 = 128/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
18/16 = 18 × 45/16 × 45 = 810/720 - Subtract the two like fractions:
128/720 - 810/720 = 128 - 810/720 = -682/720 - After reducing the fraction, the answer is -341/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-18/16 8/45-36/16 8/90-18/16 8/45-18/32 24/45-18/16 8/45-54/16 8/45-18/48 40/45-18/16 8/45-90/16 8/45-18/80 56/45-18/16