Add 12/20 and 90/5
1st number: 12/20, 2nd number: 18 0/5
12/20 + 90/5 is 93/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
12/20 = 12 × 1/20 × 1 = 12/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
90/5 = 90 × 4/5 × 4 = 360/20 - Add the two like fractions:
12/20 + 360/20 = 12 + 360/20 = 372/20 - 372/20 simplified gives 93/5
- So, 12/20 + 90/5 = 93/5
In mixed form: 183/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20+90/5 12/40+90/5 12/20+90/10 36/20+90/5 12/60+90/5 12/20+90/15 60/20+90/5 12/20+90/25 84/20+90/5 12/20+90/35