Answers

Subtract 42/75 from 5/18

5/18 - 42/75 is -127/450.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 75 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 18 × 25 = 450,
   5/18 = 5 × 25/18 × 25 = 125/450
3. Likewise, for the 2nd fraction, since 75 × 6 = 450,
   42/75 = 42 × 6/75 × 6 = 252/450
4. Subtract the two like fractions:
   125/450 - 252/450 = 125 - 252/450 = -127/450

MathStep (Works offline)

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

Related: ¹⁰/₁₈-⁴²/₇₅ ⁵/₁₈-⁸⁴/₇₅ ⁵/₃₆-⁴²/₇₅ ¹⁵/₁₈-⁴²/₇₅ ⁵/₅₄-⁴²/₇₅ ²⁵/₁₈-⁴²/₇₅ ⁵/₉₀-⁴²/₇₅ ³⁵/₁₈-⁴²/₇₅

Subtract Fractions Calculator