Add 18/30 and 20/32
18/30 + 20/32 is 49/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
18/30 = 18 × 16/30 × 16 = 288/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
20/32 = 20 × 15/32 × 15 = 300/480 - Add the two like fractions:
288/480 + 300/480 = 288 + 300/480 = 588/480 - 588/480 simplified gives 49/40
- So, 18/30 + 20/32 = 49/40
In mixed form: 19/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+20/32 18/30+40/32 18/60+20/32 18/30+20/64 54/30+20/32 18/30+60/32 18/90+20/32 18/30+20/96 90/30+20/32