Add 90/84 and 81/16
1st number: 1 6/84, 2nd number: 5 1/16
90/84 + 81/16 is 687/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
90/84 = 90 × 4/84 × 4 = 360/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
81/16 = 81 × 21/16 × 21 = 1701/336 - Add the two like fractions:
360/336 + 1701/336 = 360 + 1701/336 = 2061/336 - 2061/336 simplified gives 687/112
- So, 90/84 + 81/16 = 687/112
In mixed form: 615/112
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