Add 30/90 and 63/84
30/90 + 63/84 is 13/12.
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,
30/90 = 30 × 14/90 × 14 = 420/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
63/84 = 63 × 15/84 × 15 = 945/1260 - Add the two like fractions:
420/1260 + 945/1260 = 420 + 945/1260 = 1365/1260 - 1365/1260 simplified gives 13/12
- So, 30/90 + 63/84 = 13/12
In mixed form: 11/12
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