Subtract 72/45 from 30/98
1st number: 30/98, 2nd number: 1 27/45
30/98 - 72/45 is -317/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 45 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
30/98 = 30 × 45/98 × 45 = 1350/4410 - Likewise, for the 2nd fraction, since 45 × 98 = 4410,
72/45 = 72 × 98/45 × 98 = 7056/4410 - Subtract the two like fractions:
1350/4410 - 7056/4410 = 1350 - 7056/4410 = -5706/4410 - After reducing the fraction, the answer is -317/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/98-72/45 30/98-72/90 90/98-72/45