Answers

Add 90/60 and 42/56

1^st number: 1 30/60, 2^nd number: 42/56

90/60 + 42/56 is 9/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 56 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 60 × 14 = 840,
   90/60 = 90 × 14/60 × 14 = 1260/840
3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
   42/56 = 42 × 15/56 × 15 = 630/840
4. Add the two like fractions:
   1260/840 + 630/840 = 1260 + 630/840 = 1890/840
5. 1890/840 simplified gives 9/4
6. So, 90/60 + 42/56 = 9/4
   In mixed form: 21/4

MathStep (Works offline)

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

Related: ⁹⁰/₆₀+⁸⁴/₅₆

Add Fractions Calculator