Add 3/90 and 12/8
1st number: 3/90, 2nd number: 1 4/8
3/90 + 12/8 is 23/15.
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,
3/90 = 3 × 4/90 × 4 = 12/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
12/8 = 12 × 45/8 × 45 = 540/360 - Add the two like fractions:
12/360 + 540/360 = 12 + 540/360 = 552/360 - 552/360 simplified gives 23/15
- So, 3/90 + 12/8 = 23/15
In mixed form: 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/90+12/8 3/90+24/8 3/90+12/16 9/90+12/8 3/90+36/8 3/90+12/24 15/90+12/8 3/90+60/8 3/90+12/40 21/90+12/8 3/90+84/8 3/90+12/56