Add 90/84 and 81/30
1st number: 1 6/84, 2nd number: 2 21/30
90/84 + 81/30 is 132/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
81/30 = 81 × 14/30 × 14 = 1134/420 - Add the two like fractions:
450/420 + 1134/420 = 450 + 1134/420 = 1584/420 - 1584/420 simplified gives 132/35
- So, 90/84 + 81/30 = 132/35
In mixed form: 327/35
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