Add 45/5 and 42/28
1st number: 9 0/5, 2nd number: 1 14/28
45/5 + 42/28 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
45/5 = 45 × 28/5 × 28 = 1260/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
42/28 = 42 × 5/28 × 5 = 210/140 - Add the two like fractions:
1260/140 + 210/140 = 1260 + 210/140 = 1470/140 - 1470/140 simplified gives 21/2
- So, 45/5 + 42/28 = 21/2
In mixed form: 101/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5+42/28 45/5+84/28 45/10+42/28 45/5+42/56 45/15+42/28 45/5+42/84 45/25+42/28 45/35+42/28