Add 28/80 and 90/6
1st number: 28/80, 2nd number: 15 0/6
28/80 + 90/6 is 307/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 6 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
28/80 = 28 × 3/80 × 3 = 84/240 - Likewise, for the 2nd fraction, since 6 × 40 = 240,
90/6 = 90 × 40/6 × 40 = 3600/240 - Add the two like fractions:
84/240 + 3600/240 = 84 + 3600/240 = 3684/240 - 3684/240 simplified gives 307/20
- So, 28/80 + 90/6 = 307/20
In mixed form: 157/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80+90/6 28/80+90/12 84/80+90/6 28/80+90/18 28/80+90/30 28/80+90/42