Add 45/70 and 40/63
45/70 + 40/63 is 23/18.
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,
45/70 = 45 × 9/70 × 9 = 405/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
40/63 = 40 × 10/63 × 10 = 400/630 - Add the two like fractions:
405/630 + 400/630 = 405 + 400/630 = 805/630 - 805/630 simplified gives 23/18
- So, 45/70 + 40/63 = 23/18
In mixed form: 15/18
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