Add 7/56 and 90/12
1st number: 7/56, 2nd number: 7 6/12
7/56 + 90/12 is 61/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 12 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
7/56 = 7 × 3/56 × 3 = 21/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
90/12 = 90 × 14/12 × 14 = 1260/168 - Add the two like fractions:
21/168 + 1260/168 = 21 + 1260/168 = 1281/168 - 1281/168 simplified gives 61/8
- So, 7/56 + 90/12 = 61/8
In mixed form: 75/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/56+90/12 7/56+90/24 21/56+90/12 7/56+90/36 35/56+90/12 7/56+90/60 49/56+90/12 7/56+90/84