Add 56/12 and 12/90
1st number: 4 8/12, 2nd number: 12/90
56/12 + 12/90 is 24/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
56/12 = 56 × 15/12 × 15 = 840/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
12/90 = 12 × 2/90 × 2 = 24/180 - Add the two like fractions:
840/180 + 24/180 = 840 + 24/180 = 864/180 - 864/180 simplified gives 24/5
- So, 56/12 + 12/90 = 24/5
In mixed form: 44/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+24/90 56/24+12/90 56/12+36/90 56/36+12/90 56/12+60/90 56/60+12/90 56/12+84/90 56/84+12/90