Add 25/42 and 75/90
25/42 + 75/90 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
25/42 = 25 × 15/42 × 15 = 375/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
75/90 = 75 × 7/90 × 7 = 525/630 - Add the two like fractions:
375/630 + 525/630 = 375 + 525/630 = 900/630 - 900/630 simplified gives 10/7
- So, 25/42 + 75/90 = 10/7
In mixed form: 13/7
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