Add 54/7 and 12/90
1st number: 7 5/7, 2nd number: 12/90
54/7 + 12/90 is 824/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
54/7 = 54 × 90/7 × 90 = 4860/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
12/90 = 12 × 7/90 × 7 = 84/630 - Add the two like fractions:
4860/630 + 84/630 = 4860 + 84/630 = 4944/630 - 4944/630 simplified gives 824/105
- So, 54/7 + 12/90 = 824/105
In mixed form: 789/105
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