Add 30/10 and 42/28
1st number: 3 0/10, 2nd number: 1 14/28
30/10 + 42/28 is 9/2.
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,
30/10 = 30 × 14/10 × 14 = 420/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
42/28 = 42 × 5/28 × 5 = 210/140 - Add the two like fractions:
420/140 + 210/140 = 420 + 210/140 = 630/140 - 630/140 simplified gives 9/2
- So, 30/10 + 42/28 = 9/2
In mixed form: 41/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+42/28 30/10+84/28 30/20+42/28 30/10+42/56 90/10+42/28 30/10+42/84 30/50+42/28 30/70+42/28