Add 80/4 and 18/7
1st number: 20 0/4, 2nd number: 2 4/7
80/4 + 18/7 is 158/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
80/4 = 80 × 7/4 × 7 = 560/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
18/7 = 18 × 4/7 × 4 = 72/28 - Add the two like fractions:
560/28 + 72/28 = 560 + 72/28 = 632/28 - 632/28 simplified gives 158/7
- So, 80/4 + 18/7 = 158/7
In mixed form: 224/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4+36/7 80/8+18/7 80/4+18/14 80/4+54/7 80/12+18/7 80/4+18/21 80/4+90/7 80/20+18/7 80/4+18/35 80/28+18/7 80/4+18/49