Add 7/90 and 21/50
7/90 + 21/50 is 112/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
7/90 = 7 × 5/90 × 5 = 35/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
21/50 = 21 × 9/50 × 9 = 189/450 - Add the two like fractions:
35/450 + 189/450 = 35 + 189/450 = 224/450 - 224/450 simplified gives 112/225
- So, 7/90 + 21/50 = 112/225
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