Add 20/40 and 30/84
20/40 + 30/84 is 6/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
20/40 = 20 × 21/40 × 21 = 420/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
30/84 = 30 × 10/84 × 10 = 300/840 - Add the two like fractions:
420/840 + 300/840 = 420 + 300/840 = 720/840 - 720/840 simplified gives 6/7
- So, 20/40 + 30/84 = 6/7
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