Answers

Subtract 4/70 from 28/80

28/80 - 4/70 is 41/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 70 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   28/80 = 28 × 7/80 × 7 = 196/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   4/70 = 4 × 8/70 × 8 = 32/560
4. Subtract the two like fractions:
   196/560 - 32/560 = 196 - 32/560 = 164/560
5. After reducing the fraction, the answer is 41/140

MathStep (Works offline)

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

Related: ⁵⁶/₈₀-⁴/₇₀ ²⁸/₈₀-⁸/₇₀ ⁸⁴/₈₀-⁴/₇₀ ²⁸/₈₀-¹²/₇₀ ²⁸/₈₀-²⁰/₇₀ ²⁸/₈₀-²⁸/₇₀

Subtract Fractions Calculator