Add 30/90 and 9/28
30/90 + 9/28 is 55/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 28 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 28 × 45 = 1260,
9/28 = 9 × 45/28 × 45 = 405/1260 - Add the two like fractions:
420/1260 + 405/1260 = 420 + 405/1260 = 825/1260 - 825/1260 simplified gives 55/84
- So, 30/90 + 9/28 = 55/84
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