Add 5/90 and 45/42
1st number: 5/90, 2nd number: 1 3/42
5/90 + 45/42 is 71/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
5/90 = 5 × 7/90 × 7 = 35/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
45/42 = 45 × 15/42 × 15 = 675/630 - Add the two like fractions:
35/630 + 675/630 = 35 + 675/630 = 710/630 - 710/630 simplified gives 71/63
- So, 5/90 + 45/42 = 71/63
In mixed form: 18/63
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