Answers

Subtract 4/90 from 80/25

1^st number: 3 5/25, 2^nd number: 4/90

80/25 - 4/90 is 142/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 25 × 18 = 450,
   80/25 = 80 × 18/25 × 18 = 1440/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   4/90 = 4 × 5/90 × 5 = 20/450
4. Subtract the two like fractions:
   1440/450 - 20/450 = 1440 - 20/450 = 1420/450
5. After reducing the fraction, the answer is 142/45
6. In mixed form: 37/45

MathStep (Works offline)

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

Related: ⁸⁰/₂₅-⁸/₉₀ ⁸⁰/₅₀-⁴/₉₀ ⁸⁰/₂₅-¹²/₉₀ ⁸⁰/₇₅-⁴/₉₀ ⁸⁰/₂₅-²⁰/₉₀ ⁸⁰/₂₅-²⁸/₉₀

Subtract Fractions Calculator