Answers

Subtract 54/98 from 90/25

1^st number: 3 15/25, 2^nd number: 54/98

90/25 - 54/98 is 747/245.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 98 is 2450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2450
2. For the 1st fraction, since 25 × 98 = 2450,
   90/25 = 90 × 98/25 × 98 = 8820/2450
3. Likewise, for the 2nd fraction, since 98 × 25 = 2450,
   54/98 = 54 × 25/98 × 25 = 1350/2450
4. Subtract the two like fractions:
   8820/2450 - 1350/2450 = 8820 - 1350/2450 = 7470/2450
5. After reducing the fraction, the answer is 747/245
6. In mixed form: 312/245

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁹⁰/₅₀-⁵⁴/₉₈ ⁹⁰/₇₅-⁵⁴/₉₈

Subtract Fractions Calculator