Add 5/70 and 90/84
1st number: 5/70, 2nd number: 1 6/84
5/70 + 90/84 is 8/7.
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,
5/70 = 5 × 6/70 × 6 = 30/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Add the two like fractions:
30/420 + 450/420 = 30 + 450/420 = 480/420 - 480/420 simplified gives 8/7
- So, 5/70 + 90/84 = 8/7
In mixed form: 11/7
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