Add 12/80 and 24/15
1st number: 12/80, 2nd number: 1 9/15
12/80 + 24/15 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
12/80 = 12 × 3/80 × 3 = 36/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
24/15 = 24 × 16/15 × 16 = 384/240 - Add the two like fractions:
36/240 + 384/240 = 36 + 384/240 = 420/240 - 420/240 simplified gives 7/4
- So, 12/80 + 24/15 = 7/4
In mixed form: 13/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/80+24/15 12/80+48/15 12/80+24/30 36/80+24/15 12/80+72/15 12/80+24/45 60/80+24/15 12/80+24/75 84/80+24/15