Add 12/28 and 90/7
1st number: 12/28, 2nd number: 12 6/7
12/28 + 90/7 is 93/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
12/28 = 12 × 1/28 × 1 = 12/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
90/7 = 90 × 4/7 × 4 = 360/28 - Add the two like fractions:
12/28 + 360/28 = 12 + 360/28 = 372/28 - 372/28 simplified gives 93/7
- So, 12/28 + 90/7 = 93/7
In mixed form: 132/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28+90/7 12/56+90/7 12/28+90/14 36/28+90/7 12/84+90/7 12/28+90/21 60/28+90/7 12/28+90/35 84/28+90/7 12/28+90/49