Answers

Add 14/70 and 90/80

1^st number: 14/70, 2^nd number: 1 10/80

14/70 + 90/80 is 53/40.

Steps for adding 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,
   14/70 = 14 × 8/70 × 8 = 112/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   90/80 = 90 × 7/80 × 7 = 630/560
4. Add the two like fractions:
   112/560 + 630/560 = 112 + 630/560 = 742/560
5. 742/560 simplified gives 53/40
6. So, 14/70 + 90/80 = 53/40
   In mixed form: 113/40

MathStep (Works offline)

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

Related: ²⁸/₇₀+⁹⁰/₈₀ ⁴²/₇₀+⁹⁰/₈₀ ⁹⁸/₇₀+⁹⁰/₈₀

Add Fractions Calculator