Add 81/4 and 70/84
1st number: 20 1/4, 2nd number: 70/84
81/4 + 70/84 is 253/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
81/4 = 81 × 21/4 × 21 = 1701/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
70/84 = 70 × 1/84 × 1 = 70/84 - Add the two like fractions:
1701/84 + 70/84 = 1701 + 70/84 = 1771/84 - 1771/84 simplified gives 253/12
- So, 81/4 + 70/84 = 253/12
In mixed form: 211/12
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