Add 90/84 and 12/30
1st number: 1 6/84, 2nd number: 12/30
90/84 + 12/30 is 103/70.
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,
12/30 = 12 × 14/30 × 14 = 168/420 - Add the two like fractions:
450/420 + 168/420 = 450 + 168/420 = 618/420 - 618/420 simplified gives 103/70
- So, 90/84 + 12/30 = 103/70
In mixed form: 133/70
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