Add 63/28 and 18/80
1st number: 2 7/28, 2nd number: 18/80
63/28 + 18/80 is 99/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
63/28 = 63 × 20/28 × 20 = 1260/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
18/80 = 18 × 7/80 × 7 = 126/560 - Add the two like fractions:
1260/560 + 126/560 = 1260 + 126/560 = 1386/560 - 1386/560 simplified gives 99/40
- So, 63/28 + 18/80 = 99/40
In mixed form: 219/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/28+36/80 63/56+18/80 63/28+54/80 63/84+18/80 63/28+90/80