Add 45/14 and 90/80
1st number: 3 3/14, 2nd number: 1 10/80
45/14 + 90/80 is 243/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 14 × 40 = 560,
45/14 = 45 × 40/14 × 40 = 1800/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
90/80 = 90 × 7/80 × 7 = 630/560 - Add the two like fractions:
1800/560 + 630/560 = 1800 + 630/560 = 2430/560 - 2430/560 simplified gives 243/56
- So, 45/14 + 90/80 = 243/56
In mixed form: 419/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14+90/80 45/28+90/80 45/42+90/80 45/70+90/80 45/98+90/80