Add 18/28 and 90/12
1st number: 18/28, 2nd number: 7 6/12
18/28 + 90/12 is 57/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
18/28 = 18 × 3/28 × 3 = 54/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Add the two like fractions:
54/84 + 630/84 = 54 + 630/84 = 684/84 - 684/84 simplified gives 57/7
- So, 18/28 + 90/12 = 57/7
In mixed form: 81/7
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