Add 81/5 and 25/70
1st number: 16 1/5, 2nd number: 25/70
81/5 + 25/70 is 1159/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
81/5 = 81 × 14/5 × 14 = 1134/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
25/70 = 25 × 1/70 × 1 = 25/70 - Add the two like fractions:
1134/70 + 25/70 = 1134 + 25/70 = 1159/70 - So, 81/5 + 25/70 = 1159/70
In mixed form: 1639/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5+50/70 81/10+25/70 81/5+75/70 81/15+25/70 81/25+25/70 81/35+25/70