Answers

Add 18/35 and 72/60

1^st number: 18/35, 2^nd number: 1 12/60

18/35 + 72/60 is 12/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 35 × 12 = 420,
   18/35 = 18 × 12/35 × 12 = 216/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   72/60 = 72 × 7/60 × 7 = 504/420
4. Add the two like fractions:
   216/420 + 504/420 = 216 + 504/420 = 720/420
5. 720/420 simplified gives 12/7
6. So, 18/35 + 72/60 = 12/7
   In mixed form: 15/7

MathStep (Works offline)

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

Related: ³⁶/₃₅+⁷²/₆₀ ¹⁸/₇₀+⁷²/₆₀ ⁵⁴/₃₅+⁷²/₆₀ ⁹⁰/₃₅+⁷²/₆₀

Add Fractions Calculator