Add 15/90 and 8/4
1st number: 15/90, 2nd number: 2 0/4
15/90 + 8/4 is 13/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
15/90 = 15 × 2/90 × 2 = 30/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
8/4 = 8 × 45/4 × 45 = 360/180 - Add the two like fractions:
30/180 + 360/180 = 30 + 360/180 = 390/180 - 390/180 simplified gives 13/6
- So, 15/90 + 8/4 = 13/6
In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+8/4 15/90+16/4 45/90+8/4 15/90+24/4 15/90+8/12 75/90+8/4 15/90+40/4 15/90+8/20 15/90+56/4 15/90+8/28