Answers

Add 80/72 and 84/45

1^st number: 1 8/72, 2^nd number: 1 39/45

80/72 + 84/45 is 134/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 45 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   80/72 = 80 × 5/72 × 5 = 400/360
3. Likewise, for the 2nd fraction, since 45 × 8 = 360,
   84/45 = 84 × 8/45 × 8 = 672/360
4. Add the two like fractions:
   400/360 + 672/360 = 400 + 672/360 = 1072/360
5. 1072/360 simplified gives 134/45
6. So, 80/72 + 84/45 = 134/45
   In mixed form: 244/45

MathStep (Works offline)

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

Related: ⁸⁰/₇₂+⁸⁴/₉₀

Add Fractions Calculator