Add 27/84 and 20/40
27/84 + 20/40 is 23/28.
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,
27/84 = 27 × 10/84 × 10 = 270/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
20/40 = 20 × 21/40 × 21 = 420/840 - Add the two like fractions:
270/840 + 420/840 = 270 + 420/840 = 690/840 - 690/840 simplified gives 23/28
- So, 27/84 + 20/40 = 23/28
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