Add 90/30 and 5/28
1st number: 3 0/30, 2nd number: 5/28
90/30 + 5/28 is 89/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
90/30 = 90 × 14/30 × 14 = 1260/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
5/28 = 5 × 15/28 × 15 = 75/420 - Add the two like fractions:
1260/420 + 75/420 = 1260 + 75/420 = 1335/420 - 1335/420 simplified gives 89/28
- So, 90/30 + 5/28 = 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: 90/30+10/28 90/60+5/28 90/30+5/56 90/30+15/28 90/30+5/84 90/30+25/28 90/30+35/28