Subtract 12/90 from 49/28
1st number: 1 21/28, 2nd number: 12/90
49/28 - 12/90 is 97/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
49/28 = 49 × 45/28 × 45 = 2205/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
12/90 = 12 × 14/90 × 14 = 168/1260 - Subtract the two like fractions:
2205/1260 - 168/1260 = 2205 - 168/1260 = 2037/1260 - After reducing the fraction, the answer is 97/60
- In mixed form: 137/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28-12/90 49/28-24/90 49/56-12/90 49/28-36/90 49/84-12/90 49/28-60/90 49/28-84/90