Add 12/90 and 90/84
1st number: 12/90, 2nd number: 1 6/84
12/90 + 90/84 is 253/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
12/90 = 12 × 14/90 × 14 = 168/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
90/84 = 90 × 15/84 × 15 = 1350/1260 - Add the two like fractions:
168/1260 + 1350/1260 = 168 + 1350/1260 = 1518/1260 - 1518/1260 simplified gives 253/210
- So, 12/90 + 90/84 = 253/210
In mixed form: 143/210
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