Add 4/28 and 90/10
1st number: 4/28, 2nd number: 9 0/10
4/28 + 90/10 is 64/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
4/28 = 4 × 5/28 × 5 = 20/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
90/10 = 90 × 14/10 × 14 = 1260/140 - Add the two like fractions:
20/140 + 1260/140 = 20 + 1260/140 = 1280/140 - 1280/140 simplified gives 64/7
- So, 4/28 + 90/10 = 64/7
In mixed form: 91/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28+90/10 4/56+90/10 4/28+90/20 12/28+90/10 4/84+90/10 4/28+90/30 20/28+90/10 4/28+90/50 4/28+90/70