Answers

Add 90/20 and 30/75

1^st number: 4 10/20, 2^nd number: 30/75

90/20 + 30/75 is 49/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 75 is 300
   
   Next, find the equivalent fraction of both fractional numbers with denominator 300
2. For the 1st fraction, since 20 × 15 = 300,
   90/20 = 90 × 15/20 × 15 = 1350/300
3. Likewise, for the 2nd fraction, since 75 × 4 = 300,
   30/75 = 30 × 4/75 × 4 = 120/300
4. Add the two like fractions:
   1350/300 + 120/300 = 1350 + 120/300 = 1470/300
5. 1470/300 simplified gives 49/10
6. So, 90/20 + 30/75 = 49/10
   In mixed form: 49/10

MathStep (Works offline)

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

Related: ⁹⁰/₂₀+⁶⁰/₇₅ ⁹⁰/₄₀+³⁰/₇₅ ⁹⁰/₂₀+⁹⁰/₇₅ ⁹⁰/₆₀+³⁰/₇₅

Add Fractions Calculator