Add 28/45 and 90/12
1st number: 28/45, 2nd number: 7 6/12
28/45 + 90/12 is 731/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
28/45 = 28 × 4/45 × 4 = 112/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
90/12 = 90 × 15/12 × 15 = 1350/180 - Add the two like fractions:
112/180 + 1350/180 = 112 + 1350/180 = 1462/180 - 1462/180 simplified gives 731/90
- So, 28/45 + 90/12 = 731/90
In mixed form: 811/90
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