Add 70/28 and 10/20
1st number: 2 14/28, 2nd number: 10/20
70/28 + 10/20 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
70/28 = 70 × 5/28 × 5 = 350/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
10/20 = 10 × 7/20 × 7 = 70/140 - Add the two like fractions:
350/140 + 70/140 = 350 + 70/140 = 420/140 - 420/140 simplified gives 3/1
- So, 70/28 + 10/20 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/56+10/20 70/28+10/40 70/28+30/20 70/84+10/20 70/28+10/60 70/28+50/20 70/28+70/20