Add 90/20 and 8/60
1st number: 4 10/20, 2nd number: 8/60
90/20 + 8/60 is 139/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
8/60 = 8 × 1/60 × 1 = 8/60 - Add the two like fractions:
270/60 + 8/60 = 270 + 8/60 = 278/60 - 278/60 simplified gives 139/30
- So, 90/20 + 8/60 = 139/30
In mixed form: 419/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+16/60 90/40+8/60 90/20+24/60 90/60+8/60 90/20+40/60 90/20+56/60