Add 18/10 and 30/28
1st number: 1 8/10, 2nd number: 1 2/28
18/10 + 30/28 is 201/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
18/10 = 18 × 14/10 × 14 = 252/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
30/28 = 30 × 5/28 × 5 = 150/140 - Add the two like fractions:
252/140 + 150/140 = 252 + 150/140 = 402/140 - 402/140 simplified gives 201/70
- So, 18/10 + 30/28 = 201/70
In mixed form: 261/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10+30/28 18/10+60/28 18/20+30/28 18/10+30/56 54/10+30/28 18/10+90/28 18/30+30/28 18/10+30/84 90/10+30/28 18/50+30/28 18/70+30/28