Add 7/2 and 5/42
1st number: 3 1/2, 2nd number: 5/42
7/2 + 5/42 is 76/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
7/2 = 7 × 21/2 × 21 = 147/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
5/42 = 5 × 1/42 × 1 = 5/42 - Add the two like fractions:
147/42 + 5/42 = 147 + 5/42 = 152/42 - 152/42 simplified gives 76/21
- So, 7/2 + 5/42 = 76/21
In mixed form: 313/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+5/42 7/2+10/42 7/4+5/42 7/2+5/84 21/2+5/42 7/2+15/42 7/6+5/42 35/2+5/42 7/2+25/42 7/10+5/42 49/2+5/42 7/2+35/42 7/14+5/42