Add 20/90 and 45/32
1st number: 20/90, 2nd number: 1 13/32
20/90 + 45/32 is 469/288.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 32 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 90 × 16 = 1440,
20/90 = 20 × 16/90 × 16 = 320/1440 - Likewise, for the 2nd fraction, since 32 × 45 = 1440,
45/32 = 45 × 45/32 × 45 = 2025/1440 - Add the two like fractions:
320/1440 + 2025/1440 = 320 + 2025/1440 = 2345/1440 - 2345/1440 simplified gives 469/288
- So, 20/90 + 45/32 = 469/288
In mixed form: 1181/288
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