Add 18/60 and 30/40
18/60 + 30/40 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
18/60 = 18 × 2/60 × 2 = 36/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
30/40 = 30 × 3/40 × 3 = 90/120 - Add the two like fractions:
36/120 + 90/120 = 36 + 90/120 = 126/120 - 126/120 simplified gives 21/20
- So, 18/60 + 30/40 = 21/20
In mixed form: 11/20
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