Add 7/18 and 32/40
7/18 + 32/40 is 107/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
7/18 = 7 × 20/18 × 20 = 140/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
32/40 = 32 × 9/40 × 9 = 288/360 - Add the two like fractions:
140/360 + 288/360 = 140 + 288/360 = 428/360 - 428/360 simplified gives 107/90
- So, 7/18 + 32/40 = 107/90
In mixed form: 117/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/18+32/40 7/18+64/40 7/36+32/40 7/18+32/80 21/18+32/40 7/18+96/40 7/54+32/40 35/18+32/40 7/90+32/40 49/18+32/40