Add 45/63 and 70/30
1st number: 45/63, 2nd number: 2 10/30
45/63 + 70/30 is 64/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
45/63 = 45 × 10/63 × 10 = 450/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
70/30 = 70 × 21/30 × 21 = 1470/630 - Add the two like fractions:
450/630 + 1470/630 = 450 + 1470/630 = 1920/630 - 1920/630 simplified gives 64/21
- So, 45/63 + 70/30 = 64/21
In mixed form: 31/21
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