Answers

Add 54/18 and 98/20

1^st number: 3 0/18, 2^nd number: 4 18/20

54/18 + 98/20 is 79/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 18 × 10 = 180,
   54/18 = 54 × 10/18 × 10 = 540/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   98/20 = 98 × 9/20 × 9 = 882/180
4. Add the two like fractions:
   540/180 + 882/180 = 540 + 882/180 = 1422/180
5. 1422/180 simplified gives 79/10
6. So, 54/18 + 98/20 = 79/10
   In mixed form: 79/10

MathStep (Works offline)

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

Related: ⁵⁴/₃₆+⁹⁸/₂₀ ⁵⁴/₁₈+⁹⁸/₄₀ ⁵⁴/₁₈+⁹⁸/₆₀ ⁵⁴/₉₀+⁹⁸/₂₀

Add Fractions Calculator