Add 5/28 and 90/30
1st number: 5/28, 2nd number: 3 0/30
5/28 + 90/30 is 89/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
5/28 = 5 × 15/28 × 15 = 75/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
90/30 = 90 × 14/30 × 14 = 1260/420 - Add the two like fractions:
75/420 + 1260/420 = 75 + 1260/420 = 1335/420 - 1335/420 simplified gives 89/28
- So, 5/28 + 90/30 = 89/28
In mixed form: 35/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/28+90/30 5/56+90/30 5/28+90/60 15/28+90/30 5/84+90/30 25/28+90/30 35/28+90/30