Add 7/42 and 8/16
7/42 + 8/16 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
7/42 = 7 × 8/42 × 8 = 56/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
8/16 = 8 × 21/16 × 21 = 168/336 - Add the two like fractions:
56/336 + 168/336 = 56 + 168/336 = 224/336 - 224/336 simplified gives 2/3
- So, 7/42 + 8/16 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+8/16 7/84+8/16 7/42+8/32 21/42+8/16 7/42+24/16 7/42+8/48 35/42+8/16 7/42+40/16 7/42+8/80 49/42+8/16 7/42+56/16