Add 15/63 and 45/90
15/63 + 45/90 is 31/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
45/90 = 45 × 7/90 × 7 = 315/630 - Add the two like fractions:
150/630 + 315/630 = 150 + 315/630 = 465/630 - 465/630 simplified gives 31/42
- So, 15/63 + 45/90 = 31/42
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