Add 18/63 and 75/70
1st number: 18/63, 2nd number: 1 5/70
18/63 + 75/70 is 19/14.
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,
18/63 = 18 × 10/63 × 10 = 180/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
75/70 = 75 × 9/70 × 9 = 675/630 - Add the two like fractions:
180/630 + 675/630 = 180 + 675/630 = 855/630 - 855/630 simplified gives 19/14
- So, 18/63 + 75/70 = 19/14
In mixed form: 15/14
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