Add 90/42 and 25/7
1st number: 2 6/42, 2nd number: 3 4/7
90/42 + 25/7 is 40/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
90/42 = 90 × 1/42 × 1 = 90/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
25/7 = 25 × 6/7 × 6 = 150/42 - Add the two like fractions:
90/42 + 150/42 = 90 + 150/42 = 240/42 - 240/42 simplified gives 40/7
- So, 90/42 + 25/7 = 40/7
In mixed form: 55/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+50/7 90/84+25/7 90/42+25/14 90/42+75/7 90/42+25/21 90/42+25/35 90/42+25/49