Add 3/4 and 7/42
3/4 + 7/42 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
3/4 = 3 × 21/4 × 21 = 63/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
7/42 = 7 × 2/42 × 2 = 14/84 - Add the two like fractions:
63/84 + 14/84 = 63 + 14/84 = 77/84 - 77/84 simplified gives 11/12
- So, 3/4 + 7/42 = 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/4+7/42 3/4+14/42 3/8+7/42 3/4+7/84 9/4+7/42 3/4+21/42 3/12+7/42 15/4+7/42 3/4+35/42 3/20+7/42 21/4+7/42 3/4+49/42 3/28+7/42