Add 80/70 and 20/24
1st number: 1 10/70, 2nd number: 20/24
80/70 + 20/24 is 83/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
80/70 = 80 × 12/70 × 12 = 960/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
20/24 = 20 × 35/24 × 35 = 700/840 - Add the two like fractions:
960/840 + 700/840 = 960 + 700/840 = 1660/840 - 1660/840 simplified gives 83/42
- So, 80/70 + 20/24 = 83/42
In mixed form: 141/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+40/24 80/70+20/48 80/70+60/24 80/70+20/72