Add 1/84 and 70/75
1/84 + 70/75 is 397/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 84 × 25 = 2100,
1/84 = 1 × 25/84 × 25 = 25/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
70/75 = 70 × 28/75 × 28 = 1960/2100 - Add the two like fractions:
25/2100 + 1960/2100 = 25 + 1960/2100 = 1985/2100 - 1985/2100 simplified gives 397/420
- So, 1/84 + 70/75 = 397/420
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