Add 4/12 and 90/7
1st number: 4/12, 2nd number: 12 6/7
4/12 + 90/7 is 277/21.
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,
4/12 = 4 × 7/12 × 7 = 28/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
90/7 = 90 × 12/7 × 12 = 1080/84 - Add the two like fractions:
28/84 + 1080/84 = 28 + 1080/84 = 1108/84 - 1108/84 simplified gives 277/21
- So, 4/12 + 90/7 = 277/21
In mixed form: 134/21
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