Add 35/21 and 81/4, Solve 1 14/21 + 20 1/4 as a fraction

Add 35/21 and 81/4

1^st number: 1 14/21, 2^nd number: 20 1/4

35/21 + 81/4 is 263/12.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
35/21 = 35 × 4/21 × 4 = 140/84
Likewise, for the 2nd fraction, since 4 × 21 = 84,
81/4 = 81 × 21/4 × 21 = 1701/84
Add the two like fractions:
140/84 + 1701/84 = 140 + 1701/84 = 1841/84
1841/84 simplified gives 263/12
So, 35/21 + 81/4 = 263/12
In mixed form: 2111/12

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