Add 25/80 and 90/12
1st number: 25/80, 2nd number: 7 6/12
25/80 + 90/12 is 125/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
25/80 = 25 × 3/80 × 3 = 75/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
90/12 = 90 × 20/12 × 20 = 1800/240 - Add the two like fractions:
75/240 + 1800/240 = 75 + 1800/240 = 1875/240 - 1875/240 simplified gives 125/16
- So, 25/80 + 90/12 = 125/16
In mixed form: 713/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80+90/12 25/80+90/24 75/80+90/12 25/80+90/36 25/80+90/60 25/80+90/84