Add 10/28 and 35/30
1st number: 10/28, 2nd number: 1 5/30
10/28 + 35/30 is 32/21.
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,
35/30 = 35 × 14/30 × 14 = 490/420 - Add the two like fractions:
150/420 + 490/420 = 150 + 490/420 = 640/420 - 640/420 simplified gives 32/21
- So, 10/28 + 35/30 = 32/21
In mixed form: 111/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28+35/30 10/28+70/30 10/56+35/30 10/28+35/60 30/28+35/30 10/84+35/30 10/28+35/90 50/28+35/30 70/28+35/30