Add 90/12 and 35/28
1st number: 7 6/12, 2nd number: 1 7/28
90/12 + 35/28 is 35/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
35/28 = 35 × 3/28 × 3 = 105/84 - Add the two like fractions:
630/84 + 105/84 = 630 + 105/84 = 735/84 - 735/84 simplified gives 35/4
- So, 90/12 + 35/28 = 35/4
In mixed form: 83/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+70/28 90/24+35/28 90/12+35/56 90/36+35/28 90/12+35/84 90/60+35/28 90/84+35/28