Add 35/5 and 5/21
1st number: 7 0/5, 2nd number: 5/21
35/5 + 5/21 is 152/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
35/5 = 35 × 21/5 × 21 = 735/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
5/21 = 5 × 5/21 × 5 = 25/105 - Add the two like fractions:
735/105 + 25/105 = 735 + 25/105 = 760/105 - 760/105 simplified gives 152/21
- So, 35/5 + 5/21 = 152/21
In mixed form: 75/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/5+5/21 35/5+10/21 35/10+5/21 35/5+5/42 35/5+15/21 35/15+5/21 35/5+5/63 35/5+25/21 35/25+5/21 35/5+35/21