Add 90/25 and 42/12
1st number: 3 15/25, 2nd number: 3 6/12
90/25 + 42/12 is 71/10.
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,
90/25 = 90 × 12/25 × 12 = 1080/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
42/12 = 42 × 25/12 × 25 = 1050/300 - Add the two like fractions:
1080/300 + 1050/300 = 1080 + 1050/300 = 2130/300 - 2130/300 simplified gives 71/10
- So, 90/25 + 42/12 = 71/10
In mixed form: 71/10
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