Answers

Add 90/36 and 72/16

1^st number: 2 18/36, 2^nd number: 4 8/16

90/36 + 72/16 is 7/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 16 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 36 × 4 = 144,
   90/36 = 90 × 4/36 × 4 = 360/144
3. Likewise, for the 2nd fraction, since 16 × 9 = 144,
   72/16 = 72 × 9/16 × 9 = 648/144
4. Add the two like fractions:
   360/144 + 648/144 = 360 + 648/144 = 1008/144
5. 1008/144 simplified gives 7/1
6. So, 90/36 + 72/16 = 7/1

MathStep (Works offline)

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

Related: ⁹⁰/₇₂+⁷²/₁₆ ⁹⁰/₃₆+⁷²/₃₂ ⁹⁰/₃₆+⁷²/₄₈ ⁹⁰/₃₆+⁷²/₈₀

Add Fractions Calculator