Subtract 7/90 from 54/3
1st number: 18 0/3, 2nd number: 7/90
54/3 - 7/90 is 1613/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
54/3 = 54 × 30/3 × 30 = 1620/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
1620/90 - 7/90 = 1620 - 7/90 = 1613/90 - In mixed form: 1783/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/3-14/90 54/6-7/90 54/3-21/90 54/9-7/90 54/3-35/90 54/15-7/90 54/3-49/90 54/21-7/90