Add 7/42 and 72/75
7/42 + 72/75 is 169/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
7/42 = 7 × 25/42 × 25 = 175/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
72/75 = 72 × 14/75 × 14 = 1008/1050 - Add the two like fractions:
175/1050 + 1008/1050 = 175 + 1008/1050 = 1183/1050 - 1183/1050 simplified gives 169/150
- So, 7/42 + 72/75 = 169/150
In mixed form: 119/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+72/75 7/84+72/75 21/42+72/75 35/42+72/75 49/42+72/75