Add 18/30 and 50/40
1st number: 18/30, 2nd number: 1 10/40
18/30 + 50/40 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
18/30 = 18 × 4/30 × 4 = 72/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
50/40 = 50 × 3/40 × 3 = 150/120 - Add the two like fractions:
72/120 + 150/120 = 72 + 150/120 = 222/120 - 222/120 simplified gives 37/20
- So, 18/30 + 50/40 = 37/20
In mixed form: 117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+50/40 18/60+50/40 18/30+50/80 54/30+50/40 18/90+50/40 90/30+50/40