Add 12/40 and 90/25
1st number: 12/40, 2nd number: 3 15/25
12/40 + 90/25 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
12/40 = 12 × 5/40 × 5 = 60/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
90/25 = 90 × 8/25 × 8 = 720/200 - Add the two like fractions:
60/200 + 720/200 = 60 + 720/200 = 780/200 - 780/200 simplified gives 39/10
- So, 12/40 + 90/25 = 39/10
In mixed form: 39/10
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