Answers

Add 42/30 and 48/81

1^st number: 1 12/30, 2^nd number: 48/81

42/30 + 48/81 is 269/135.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 81 is 810
   
   Next, find the equivalent fraction of both fractional numbers with denominator 810
2. For the 1st fraction, since 30 × 27 = 810,
   42/30 = 42 × 27/30 × 27 = 1134/810
3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
   48/81 = 48 × 10/81 × 10 = 480/810
4. Add the two like fractions:
   1134/810 + 480/810 = 1134 + 480/810 = 1614/810
5. 1614/810 simplified gives 269/135
6. So, 42/30 + 48/81 = 269/135
   In mixed form: 1134/135

MathStep (Works offline)

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

Related: ⁸⁴/₃₀+⁴⁸/₈₁ ⁴²/₃₀+⁹⁶/₈₁ ⁴²/₆₀+⁴⁸/₈₁ ⁴²/₉₀+⁴⁸/₈₁

Add Fractions Calculator