Add 21/32 and 4/90
21/32 + 4/90 is 1009/1440.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 90 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 32 × 45 = 1440,
21/32 = 21 × 45/32 × 45 = 945/1440 - Likewise, for the 2nd fraction, since 90 × 16 = 1440,
4/90 = 4 × 16/90 × 16 = 64/1440 - Add the two like fractions:
945/1440 + 64/1440 = 945 + 64/1440 = 1009/1440 - So, 21/32 + 4/90 = 1009/1440
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