Add 84/90 and 54/84
84/90 + 54/84 is 331/210.
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,
84/90 = 84 × 14/90 × 14 = 1176/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
54/84 = 54 × 15/84 × 15 = 810/1260 - Add the two like fractions:
1176/1260 + 810/1260 = 1176 + 810/1260 = 1986/1260 - 1986/1260 simplified gives 331/210
- So, 84/90 + 54/84 = 331/210
In mixed form: 1121/210
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