Answers

Subtract 72/48 from 3/90

1^st number: 3/90, 2^nd number: 1 24/48

3/90 - 72/48 is -22/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 48 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   3/90 = 3 × 8/90 × 8 = 24/720
3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
   72/48 = 72 × 15/48 × 15 = 1080/720
4. Subtract the two like fractions:
   24/720 - 1080/720 = 24 - 1080/720 = -1056/720
5. After reducing the fraction, the answer is -22/15

MathStep (Works offline)

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

Related: ⁶/₉₀-⁷²/₄₈ ³/₉₀-⁷²/₉₆ ⁹/₉₀-⁷²/₄₈ ¹⁵/₉₀-⁷²/₄₈ ²¹/₉₀-⁷²/₄₈

Subtract Fractions Calculator