Add 20/81 and 90/48
1st number: 20/81, 2nd number: 1 42/48
20/81 + 90/48 is 1375/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 48 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 81 × 16 = 1296,
20/81 = 20 × 16/81 × 16 = 320/1296 - Likewise, for the 2nd fraction, since 48 × 27 = 1296,
90/48 = 90 × 27/48 × 27 = 2430/1296 - Add the two like fractions:
320/1296 + 2430/1296 = 320 + 2430/1296 = 2750/1296 - 2750/1296 simplified gives 1375/648
- So, 20/81 + 90/48 = 1375/648
In mixed form: 279/648
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