Add 15/90 and 12/8
1st number: 15/90, 2nd number: 1 4/8
15/90 + 12/8 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
15/90 = 15 × 4/90 × 4 = 60/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
12/8 = 12 × 45/8 × 45 = 540/360 - Add the two like fractions:
60/360 + 540/360 = 60 + 540/360 = 600/360 - 600/360 simplified gives 5/3
- So, 15/90 + 12/8 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+12/8 15/90+24/8 15/90+12/16 45/90+12/8 15/90+36/8 15/90+12/24 75/90+12/8 15/90+60/8 15/90+12/40 15/90+84/8 15/90+12/56