Answers

Add 40/25 and 84/72

1^st number: 1 15/25, 2^nd number: 1 12/72

40/25 + 84/72 is 83/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 72 is 1800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1800
2. For the 1st fraction, since 25 × 72 = 1800,
   40/25 = 40 × 72/25 × 72 = 2880/1800
3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
   84/72 = 84 × 25/72 × 25 = 2100/1800
4. Add the two like fractions:
   2880/1800 + 2100/1800 = 2880 + 2100/1800 = 4980/1800
5. 4980/1800 simplified gives 83/30
6. So, 40/25 + 84/72 = 83/30
   In mixed form: 223/30

MathStep (Works offline)

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

Related: ⁸⁰/₂₅+⁸⁴/₇₂ ⁴⁰/₅₀+⁸⁴/₇₂ ⁴⁰/₇₅+⁸⁴/₇₂

Add Fractions Calculator