Add 84/7 and 18/80
1st number: 12 0/7, 2nd number: 18/80
84/7 + 18/80 is 489/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
84/7 = 84 × 80/7 × 80 = 6720/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
18/80 = 18 × 7/80 × 7 = 126/560 - Add the two like fractions:
6720/560 + 126/560 = 6720 + 126/560 = 6846/560 - 6846/560 simplified gives 489/40
- So, 84/7 + 18/80 = 489/40
In mixed form: 129/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/7+36/80 84/14+18/80 84/7+54/80 84/21+18/80 84/7+90/80 84/35+18/80 84/49+18/80