Add 28/14 and 90/70
1st number: 2 0/14, 2nd number: 1 20/70
28/14 + 90/70 is 23/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 14 × 5 = 70,
28/14 = 28 × 5/14 × 5 = 140/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Add the two like fractions:
140/70 + 90/70 = 140 + 90/70 = 230/70 - 230/70 simplified gives 23/7
- So, 28/14 + 90/70 = 23/7
In mixed form: 32/7
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