Add 90/21 and 81/6
1st number: 4 6/21, 2nd number: 13 3/6
90/21 + 81/6 is 249/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
90/21 = 90 × 2/21 × 2 = 180/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
81/6 = 81 × 7/6 × 7 = 567/42 - Add the two like fractions:
180/42 + 567/42 = 180 + 567/42 = 747/42 - 747/42 simplified gives 249/14
- So, 90/21 + 81/6 = 249/14
In mixed form: 1711/14
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