Add 81/21 and 30/16
1st number: 3 18/21, 2nd number: 1 14/16
81/21 + 30/16 is 321/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
81/21 = 81 × 16/21 × 16 = 1296/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
30/16 = 30 × 21/16 × 21 = 630/336 - Add the two like fractions:
1296/336 + 630/336 = 1296 + 630/336 = 1926/336 - 1926/336 simplified gives 321/56
- So, 81/21 + 30/16 = 321/56
In mixed form: 541/56
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