Add 56/12 and 7/90
1st number: 4 8/12, 2nd number: 7/90
56/12 + 7/90 is 427/90.
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,
7/90 = 7 × 2/90 × 2 = 14/180 - Add the two like fractions:
840/180 + 14/180 = 840 + 14/180 = 854/180 - 854/180 simplified gives 427/90
- So, 56/12 + 7/90 = 427/90
In mixed form: 467/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+14/90 56/24+7/90 56/12+21/90 56/36+7/90 56/12+35/90 56/60+7/90 56/12+49/90 56/84+7/90