Add 90/84 and 70/75
1st number: 1 6/84, 2nd number: 70/75
90/84 + 70/75 is 421/210.
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,
90/84 = 90 × 25/84 × 25 = 2250/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
70/75 = 70 × 28/75 × 28 = 1960/2100 - Add the two like fractions:
2250/2100 + 1960/2100 = 2250 + 1960/2100 = 4210/2100 - 4210/2100 simplified gives 421/210
- So, 90/84 + 70/75 = 421/210
In mixed form: 21/210
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