Add 30/10 and 90/28
1st number: 3 0/10, 2nd number: 3 6/28
30/10 + 90/28 is 87/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
30/10 = 30 × 14/10 × 14 = 420/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
90/28 = 90 × 5/28 × 5 = 450/140 - Add the two like fractions:
420/140 + 450/140 = 420 + 450/140 = 870/140 - 870/140 simplified gives 87/14
- So, 30/10 + 90/28 = 87/14
In mixed form: 63/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+90/28 30/20+90/28 30/10+90/56 90/10+90/28 30/10+90/84 30/50+90/28 30/70+90/28