Add 8/84 and 60/70
8/84 + 60/70 is 20/21.
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,
8/84 = 8 × 5/84 × 5 = 40/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
60/70 = 60 × 6/70 × 6 = 360/420 - Add the two like fractions:
40/420 + 360/420 = 40 + 360/420 = 400/420 - 400/420 simplified gives 20/21
- So, 8/84 + 60/70 = 20/21
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