Add 25/45 and 21/90
25/45 + 21/90 is 71/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
25/45 = 25 × 2/45 × 2 = 50/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
50/90 + 21/90 = 50 + 21/90 = 71/90 - So, 25/45 + 21/90 = 71/90
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