Subtract 18/45 from 7/10
7/10 - 18/45 is 3/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
7/10 = 7 × 9/10 × 9 = 63/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
18/45 = 18 × 2/45 × 2 = 36/90 - Subtract the two like fractions:
63/90 - 36/90 = 63 - 36/90 = 27/90 - After reducing the fraction, the answer is 3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10-18/45 7/10-36/45 7/20-18/45 7/10-18/90 21/10-18/45 7/10-54/45 7/30-18/45 35/10-18/45 7/10-90/45 7/50-18/45 49/10-18/45 7/70-18/45