Add 54/4 and 70/80
1st number: 13 2/4, 2nd number: 70/80
54/4 + 70/80 is 115/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
54/4 = 54 × 20/4 × 20 = 1080/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
70/80 = 70 × 1/80 × 1 = 70/80 - Add the two like fractions:
1080/80 + 70/80 = 1080 + 70/80 = 1150/80 - 1150/80 simplified gives 115/8
- So, 54/4 + 70/80 = 115/8
In mixed form: 143/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+70/80 54/12+70/80 54/20+70/80 54/28+70/80