Add 9/84 and 18/40
9/84 + 18/40 is 39/70.
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,
9/84 = 9 × 10/84 × 10 = 90/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
18/40 = 18 × 21/40 × 21 = 378/840 - Add the two like fractions:
90/840 + 378/840 = 90 + 378/840 = 468/840 - 468/840 simplified gives 39/70
- So, 9/84 + 18/40 = 39/70
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