Add 40/63 and 27/70
40/63 + 27/70 is 643/630.
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,
40/63 = 40 × 10/63 × 10 = 400/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
27/70 = 27 × 9/70 × 9 = 243/630 - Add the two like fractions:
400/630 + 243/630 = 400 + 243/630 = 643/630 - So, 40/63 + 27/70 = 643/630
In mixed form: 113/630
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