Answers

Add 42/60 and 72/9

1^st number: 42/60, 2^nd number: 8 0/9

42/60 + 72/9 is 87/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 9 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 60 × 3 = 180,
   42/60 = 42 × 3/60 × 3 = 126/180
3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
   72/9 = 72 × 20/9 × 20 = 1440/180
4. Add the two like fractions:
   126/180 + 1440/180 = 126 + 1440/180 = 1566/180
5. 1566/180 simplified gives 87/10
6. So, 42/60 + 72/9 = 87/10
   In mixed form: 87/10

MathStep (Works offline)

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

Related: ⁸⁴/₆₀+⁷²/₉ ⁴²/₆₀+⁷²/₁₈ ⁴²/₆₀+⁷²/₂₇ ⁴²/₆₀+⁷²/₄₅ ⁴²/₆₀+⁷²/₆₃

Add Fractions Calculator