Answers

Subtract 25/45 from 90/36

1^st number: 2 18/36, 2^nd number: 25/45

90/36 - 25/45 is 35/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 45 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 36 × 5 = 180,
   90/36 = 90 × 5/36 × 5 = 450/180
3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
   25/45 = 25 × 4/45 × 4 = 100/180
4. Subtract the two like fractions:
   450/180 - 100/180 = 450 - 100/180 = 350/180
5. After reducing the fraction, the answer is 35/18
6. In mixed form: 117/18

MathStep (Works offline)

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

Related: ⁹⁰/₃₆-⁵⁰/₄₅ ⁹⁰/₇₂-²⁵/₄₅ ⁹⁰/₃₆-²⁵/₉₀ ⁹⁰/₃₆-⁷⁵/₄₅

Subtract Fractions Calculator