Add 70/5 and 42/80
1st number: 14 0/5, 2nd number: 42/80
70/5 + 42/80 is 581/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
70/5 = 70 × 16/5 × 16 = 1120/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Add the two like fractions:
1120/80 + 42/80 = 1120 + 42/80 = 1162/80 - 1162/80 simplified gives 581/40
- So, 70/5 + 42/80 = 581/40
In mixed form: 1421/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/5+84/80 70/10+42/80 70/15+42/80 70/25+42/80 70/35+42/80