Answers

Add 81/60 and 40/5

1^st number: 1 21/60, 2^nd number: 8 0/5

81/60 + 40/5 is 187/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 5 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 60 × 1 = 60,
   81/60 = 81 × 1/60 × 1 = 81/60
3. Likewise, for the 2nd fraction, since 5 × 12 = 60,
   40/5 = 40 × 12/5 × 12 = 480/60
4. Add the two like fractions:
   81/60 + 480/60 = 81 + 480/60 = 561/60
5. 561/60 simplified gives 187/20
6. So, 81/60 + 40/5 = 187/20
   In mixed form: 97/20

MathStep (Works offline)

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

Related: ⁸¹/₆₀+⁸⁰/₅ ⁸¹/₆₀+⁴⁰/₁₀ ⁸¹/₆₀+⁴⁰/₁₅ ⁸¹/₆₀+⁴⁰/₂₅ ⁸¹/₆₀+⁴⁰/₃₅

Add Fractions Calculator