Add 3/12 and 90/7
1st number: 3/12, 2nd number: 12 6/7
3/12 + 90/7 is 367/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
3/12 = 3 × 7/12 × 7 = 21/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
90/7 = 90 × 12/7 × 12 = 1080/84 - Add the two like fractions:
21/84 + 1080/84 = 21 + 1080/84 = 1101/84 - 1101/84 simplified gives 367/28
- So, 3/12 + 90/7 = 367/28
In mixed form: 133/28
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