Answers

Subtract 21/80 from 84/35

1^st number: 2 14/35, 2^nd number: 21/80

84/35 - 21/80 is 171/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 35 × 16 = 560,
   84/35 = 84 × 16/35 × 16 = 1344/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   21/80 = 21 × 7/80 × 7 = 147/560
4. Subtract the two like fractions:
   1344/560 - 147/560 = 1344 - 147/560 = 1197/560
5. After reducing the fraction, the answer is 171/80
6. In mixed form: 211/80

MathStep (Works offline)

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

Related: ⁸⁴/₃₅-⁴²/₈₀ ⁸⁴/₇₀-²¹/₈₀ ⁸⁴/₃₅-⁶³/₈₀

Subtract Fractions Calculator