Answers

Subtract 45/25 from 42/98

1^st number: 42/98, 2^nd number: 1 20/25

42/98 - 45/25 is -48/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 25 is 2450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2450
2. For the 1st fraction, since 98 × 25 = 2450,
   42/98 = 42 × 25/98 × 25 = 1050/2450
3. Likewise, for the 2nd fraction, since 25 × 98 = 2450,
   45/25 = 45 × 98/25 × 98 = 4410/2450
4. Subtract the two like fractions:
   1050/2450 - 4410/2450 = 1050 - 4410/2450 = -3360/2450
5. After reducing the fraction, the answer is -48/35

MathStep (Works offline)

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

Related: ⁸⁴/₉₈-⁴⁵/₂₅ ⁴²/₉₈-⁹⁰/₂₅ ⁴²/₉₈-⁴⁵/₅₀ ⁴²/₉₈-⁴⁵/₇₅

Subtract Fractions Calculator