Subtract 18/16 from 5/90
1st number: 5/90, 2nd number: 1 2/16
5/90 - 18/16 is -77/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
5/90 = 5 × 8/90 × 8 = 40/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
18/16 = 18 × 45/16 × 45 = 810/720 - Subtract the two like fractions:
40/720 - 810/720 = 40 - 810/720 = -770/720 - After reducing the fraction, the answer is -77/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90-18/16 5/90-36/16 5/90-18/32 15/90-18/16 5/90-54/16 5/90-18/48 25/90-18/16 5/90-90/16 5/90-18/80 35/90-18/16