Subtract 30/16 from 8/45
1st number: 8/45, 2nd number: 1 14/16
8/45 - 30/16 is -611/360.
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,
30/16 = 30 × 45/16 × 45 = 1350/720 - Subtract the two like fractions:
128/720 - 1350/720 = 128 - 1350/720 = -1222/720 - After reducing the fraction, the answer is -611/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-30/16 8/45-60/16 8/90-30/16 8/45-30/32 24/45-30/16 8/45-90/16 8/45-30/48 40/45-30/16 8/45-30/80 56/45-30/16