Add 15/10 and 40/28
1st number: 1 5/10, 2nd number: 1 12/28
15/10 + 40/28 is 41/14.
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,
15/10 = 15 × 14/10 × 14 = 210/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
40/28 = 40 × 5/28 × 5 = 200/140 - Add the two like fractions:
210/140 + 200/140 = 210 + 200/140 = 410/140 - 410/140 simplified gives 41/14
- So, 15/10 + 40/28 = 41/14
In mixed form: 213/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10+40/28 15/10+80/28 15/20+40/28 15/10+40/56 45/10+40/28 15/30+40/28 15/10+40/84 75/10+40/28 15/50+40/28 15/70+40/28