Add 1/42 and 45/25
1st number: 1/42, 2nd number: 1 20/25
1/42 + 45/25 is 383/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
1/42 = 1 × 25/42 × 25 = 25/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
45/25 = 45 × 42/25 × 42 = 1890/1050 - Add the two like fractions:
25/1050 + 1890/1050 = 25 + 1890/1050 = 1915/1050 - 1915/1050 simplified gives 383/210
- So, 1/42 + 45/25 = 383/210
In mixed form: 1173/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+45/25 1/42+90/25 1/84+45/25 1/42+45/50 3/42+45/25 1/42+45/75 5/42+45/25 7/42+45/25