Answers

Add 2/70 and 72/80

2/70 + 72/80 is 13/14.

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,
   2/70 = 2 × 8/70 × 8 = 16/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   72/80 = 72 × 7/80 × 7 = 504/560
4. Add the two like fractions:
   16/560 + 504/560 = 16 + 504/560 = 520/560
5. 520/560 simplified gives 13/14
6. So, 2/70 + 72/80 = 13/14

MathStep (Works offline)

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

Related: ⁴/₇₀+⁷²/₈₀ ⁶/₇₀+⁷²/₈₀ ¹⁰/₇₀+⁷²/₈₀ ¹⁴/₇₀+⁷²/₈₀

Add Fractions Calculator