Answers

Add 72/60 and 45/40

1^st number: 1 12/60, 2^nd number: 1 5/40

72/60 + 45/40 is 93/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 60 × 2 = 120,
   72/60 = 72 × 2/60 × 2 = 144/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   45/40 = 45 × 3/40 × 3 = 135/120
4. Add the two like fractions:
   144/120 + 135/120 = 144 + 135/120 = 279/120
5. 279/120 simplified gives 93/40
6. So, 72/60 + 45/40 = 93/40
   In mixed form: 213/40

MathStep (Works offline)

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

Related: ⁷²/₆₀+⁹⁰/₄₀ ⁷²/₆₀+⁴⁵/₈₀

Add Fractions Calculator