Add 25/20 and 18/40
1st number: 1 5/20, 2nd number: 18/40
25/20 + 18/40 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
25/20 = 25 × 2/20 × 2 = 50/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
18/40 = 18 × 1/40 × 1 = 18/40 - Add the two like fractions:
50/40 + 18/40 = 50 + 18/40 = 68/40 - 68/40 simplified gives 17/10
- So, 25/20 + 18/40 = 17/10
In mixed form: 17/10
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