Add 3/72 and 80/70
1st number: 3/72, 2nd number: 1 10/70
3/72 + 80/70 is 199/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
3/72 = 3 × 35/72 × 35 = 105/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
80/70 = 80 × 36/70 × 36 = 2880/2520 - Add the two like fractions:
105/2520 + 2880/2520 = 105 + 2880/2520 = 2985/2520 - 2985/2520 simplified gives 199/168
- So, 3/72 + 80/70 = 199/168
In mixed form: 131/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/72+80/70 9/72+80/70 15/72+80/70 21/72+80/70