Add 90/20 and 27/16
1st number: 4 10/20, 2nd number: 1 11/16
90/20 + 27/16 is 99/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
90/20 = 90 × 4/20 × 4 = 360/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
27/16 = 27 × 5/16 × 5 = 135/80 - Add the two like fractions:
360/80 + 135/80 = 360 + 135/80 = 495/80 - 495/80 simplified gives 99/16
- So, 90/20 + 27/16 = 99/16
In mixed form: 63/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+54/16 90/40+27/16 90/20+27/32 90/20+81/16 90/60+27/16 90/20+27/48 90/20+27/80