Add 28/84 and 12/40
28/84 + 12/40 is 19/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
28/84 = 28 × 10/84 × 10 = 280/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
12/40 = 12 × 21/40 × 21 = 252/840 - Add the two like fractions:
280/840 + 252/840 = 280 + 252/840 = 532/840 - 532/840 simplified gives 19/30
- So, 28/84 + 12/40 = 19/30
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