Add 18/70 and 70/63
1st number: 18/70, 2nd number: 1 7/63
18/70 + 70/63 is 431/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
18/70 = 18 × 9/70 × 9 = 162/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
70/63 = 70 × 10/63 × 10 = 700/630 - Add the two like fractions:
162/630 + 700/630 = 162 + 700/630 = 862/630 - 862/630 simplified gives 431/315
- So, 18/70 + 70/63 = 431/315
In mixed form: 1116/315
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