Add 15/25 and 90/12
1st number: 15/25, 2nd number: 7 6/12
15/25 + 90/12 is 81/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
15/25 = 15 × 12/25 × 12 = 180/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
90/12 = 90 × 25/12 × 25 = 2250/300 - Add the two like fractions:
180/300 + 2250/300 = 180 + 2250/300 = 2430/300 - 2430/300 simplified gives 81/10
- So, 15/25 + 90/12 = 81/10
In mixed form: 81/10
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