Add 9/84 and 64/70
9/84 + 64/70 is 143/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
9/84 = 9 × 5/84 × 5 = 45/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
64/70 = 64 × 6/70 × 6 = 384/420 - Add the two like fractions:
45/420 + 384/420 = 45 + 384/420 = 429/420 - 429/420 simplified gives 143/140
- So, 9/84 + 64/70 = 143/140
In mixed form: 13/140
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