Add 7/8 and 45/90
7/8 + 45/90 is 11/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
7/8 = 7 × 45/8 × 45 = 315/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
45/90 = 45 × 4/90 × 4 = 180/360 - Add the two like fractions:
315/360 + 180/360 = 315 + 180/360 = 495/360 - 495/360 simplified gives 11/8
- So, 7/8 + 45/90 = 11/8
In mixed form: 13/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+45/90 7/16+45/90 21/8+45/90 7/24+45/90 35/8+45/90 7/40+45/90 49/8+45/90 7/56+45/90