Add 10/28 and 5/30
10/28 + 5/30 is 11/21.
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,
10/28 = 10 × 15/28 × 15 = 150/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
5/30 = 5 × 14/30 × 14 = 70/420 - Add the two like fractions:
150/420 + 70/420 = 150 + 70/420 = 220/420 - 220/420 simplified gives 11/21
- So, 10/28 + 5/30 = 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28+5/30 10/28+10/30 10/56+5/30 10/28+5/60 30/28+5/30 10/28+15/30 10/84+5/30 10/28+5/90 50/28+5/30 10/28+25/30 70/28+5/30 10/28+35/30