Subtract 1/72 from 90/6
1st number: 15 0/6, 2nd number: 1/72
906 - 172 is 107972.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 6 × 12 = 72,
906 = 90 × 126 × 12 = 108072 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
172 = 1 × 172 × 1 = 172 - Subtract the two like fractions:
108072 - 172 = 1080 - 172 = 107972 - In mixed form: 147172
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/6-2/72 90/12-1/72 90/6-3/72 90/18-1/72 90/6-5/72 90/30-1/72 90/6-7/72 90/42-1/72