Answers

Add 42/30 and 90/48

1^st number: 1 12/30, 2^nd number: 1 42/48

42/30 + 90/48 is 131/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 48 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 30 × 8 = 240,
   42/30 = 42 × 8/30 × 8 = 336/240
3. Likewise, for the 2nd fraction, since 48 × 5 = 240,
   90/48 = 90 × 5/48 × 5 = 450/240
4. Add the two like fractions:
   336/240 + 450/240 = 336 + 450/240 = 786/240
5. 786/240 simplified gives 131/40
6. So, 42/30 + 90/48 = 131/40
   In mixed form: 311/40

MathStep (Works offline)

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

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

Add Fractions Calculator