Add 20/63 and 75/70
1st number: 20/63, 2nd number: 1 5/70
20/63 + 75/70 is 25/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
20/63 = 20 × 10/63 × 10 = 200/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
75/70 = 75 × 9/70 × 9 = 675/630 - Add the two like fractions:
200/630 + 675/630 = 200 + 675/630 = 875/630 - 875/630 simplified gives 25/18
- So, 20/63 + 75/70 = 25/18
In mixed form: 17/18
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