Subtract 90/63 from 35/20
1st number: 1 15/20, 2nd number: 1 27/63
35/20 - 90/63 is 9/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
35/20 = 35 × 63/20 × 63 = 2205/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
90/63 = 90 × 20/63 × 20 = 1800/1260 - Subtract the two like fractions:
2205/1260 - 1800/1260 = 2205 - 1800/1260 = 405/1260 - After reducing the fraction, the answer is 9/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-90/63 35/40-90/63 35/60-90/63