Add 45/42 and 10/28
1st number: 1 3/42, 2nd number: 10/28
45/42 + 10/28 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
45/42 = 45 × 2/42 × 2 = 90/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
10/28 = 10 × 3/28 × 3 = 30/84 - Add the two like fractions:
90/84 + 30/84 = 90 + 30/84 = 120/84 - 120/84 simplified gives 10/7
- So, 45/42 + 10/28 = 10/7
In mixed form: 13/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+10/28 45/42+20/28 45/84+10/28 45/42+10/56 45/42+30/28 45/42+10/84 45/42+50/28 45/42+70/28