Add 90/21 and 20/32
1st number: 4 6/21, 2nd number: 20/32
90/21 + 20/32 is 275/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 21 × 32 = 672,
90/21 = 90 × 32/21 × 32 = 2880/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
20/32 = 20 × 21/32 × 21 = 420/672 - Add the two like fractions:
2880/672 + 420/672 = 2880 + 420/672 = 3300/672 - 3300/672 simplified gives 275/56
- So, 90/21 + 20/32 = 275/56
In mixed form: 451/56
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