Add 28/70 and 1/84
28/70 + 1/84 is 173/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
28/70 = 28 × 6/70 × 6 = 168/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
1/84 = 1 × 5/84 × 5 = 5/420 - Add the two like fractions:
168/420 + 5/420 = 168 + 5/420 = 173/420 - So, 28/70 + 1/84 = 173/420
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