Add 20/30 and 18/40
20/30 + 18/40 is 67/60.
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,
20/30 = 20 × 4/30 × 4 = 80/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Add the two like fractions:
80/120 + 54/120 = 80 + 54/120 = 134/120 - 134/120 simplified gives 67/60
- So, 20/30 + 18/40 = 67/60
In mixed form: 17/60
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