Add 70/18 and 80/28
1st number: 3 16/18, 2nd number: 2 24/28
70/18 + 80/28 is 425/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
70/18 = 70 × 14/18 × 14 = 980/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
80/28 = 80 × 9/28 × 9 = 720/252 - Add the two like fractions:
980/252 + 720/252 = 980 + 720/252 = 1700/252 - 1700/252 simplified gives 425/63
- So, 70/18 + 80/28 = 425/63
In mixed form: 647/63
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