Add 20/70 and 75/84
20/70 + 75/84 is 33/28.
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,
20/70 = 20 × 6/70 × 6 = 120/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
75/84 = 75 × 5/84 × 5 = 375/420 - Add the two like fractions:
120/420 + 375/420 = 120 + 375/420 = 495/420 - 495/420 simplified gives 33/28
- So, 20/70 + 75/84 = 33/28
In mixed form: 15/28
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