Add 20/16 and 3/90
1st number: 1 4/16, 2nd number: 3/90
20/16 + 3/90 is 77/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
20/16 = 20 × 45/16 × 45 = 900/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
3/90 = 3 × 8/90 × 8 = 24/720 - Add the two like fractions:
900/720 + 24/720 = 900 + 24/720 = 924/720 - 924/720 simplified gives 77/60
- So, 20/16 + 3/90 = 77/60
In mixed form: 117/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/16+3/90 20/16+6/90 20/32+3/90 60/16+3/90 20/16+9/90 20/48+3/90 20/16+15/90 20/80+3/90 20/16+21/90