Answers

Subtract 25/75 from 9/70

9/70 - 25/75 is -43/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 75 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 70 × 15 = 1050,
   9/70 = 9 × 15/70 × 15 = 135/1050
3. Likewise, for the 2nd fraction, since 75 × 14 = 1050,
   25/75 = 25 × 14/75 × 14 = 350/1050
4. Subtract the two like fractions:
   135/1050 - 350/1050 = 135 - 350/1050 = -215/1050
5. After reducing the fraction, the answer is -43/210

MathStep (Works offline)

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

Related: ¹⁸/₇₀-²⁵/₇₅ ⁹/₇₀-⁵⁰/₇₅ ²⁷/₇₀-²⁵/₇₅ ⁴⁵/₇₀-²⁵/₇₅ ⁶³/₇₀-²⁵/₇₅

Subtract Fractions Calculator