Add 18/56 and 90/7
1st number: 18/56, 2nd number: 12 6/7
18/56 + 90/7 is 369/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
18/56 = 18 × 1/56 × 1 = 18/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
90/7 = 90 × 8/7 × 8 = 720/56 - Add the two like fractions:
18/56 + 720/56 = 18 + 720/56 = 738/56 - 738/56 simplified gives 369/28
- So, 18/56 + 90/7 = 369/28
In mixed form: 135/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56+90/7 18/56+90/14 54/56+90/7 18/56+90/21 90/56+90/7 18/56+90/35 18/56+90/49