Add 20/18 and 80/70
1st number: 1 2/18, 2nd number: 1 10/70
20/18 + 80/70 is 142/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
20/18 = 20 × 35/18 × 35 = 700/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630 - Add the two like fractions:
700/630 + 720/630 = 700 + 720/630 = 1420/630 - 1420/630 simplified gives 142/63
- So, 20/18 + 80/70 = 142/63
In mixed form: 216/63
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