Add 90/75 and 30/84
1st number: 1 15/75, 2nd number: 30/84
90/75 + 30/84 is 109/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 75 × 28 = 2100,
90/75 = 90 × 28/75 × 28 = 2520/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
30/84 = 30 × 25/84 × 25 = 750/2100 - Add the two like fractions:
2520/2100 + 750/2100 = 2520 + 750/2100 = 3270/2100 - 3270/2100 simplified gives 109/70
- So, 90/75 + 30/84 = 109/70
In mixed form: 139/70
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