Answers

Subtract 28/80 from 48/70

48/70 - 28/80 is 47/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 70 × 8 = 560,
   48/70 = 48 × 8/70 × 8 = 384/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   28/80 = 28 × 7/80 × 7 = 196/560
4. Subtract the two like fractions:
   384/560 - 196/560 = 384 - 196/560 = 188/560
5. After reducing the fraction, the answer is 47/140

MathStep (Works offline)

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

Related: ⁹⁶/₇₀-²⁸/₈₀ ⁴⁸/₇₀-⁵⁶/₈₀ ⁴⁸/₇₀-⁸⁴/₈₀

Subtract Fractions Calculator