Add 90/21 and 40/32
1st number: 4 6/21, 2nd number: 1 8/32
90/21 + 40/32 is 155/28.
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,
40/32 = 40 × 21/32 × 21 = 840/672 - Add the two like fractions:
2880/672 + 840/672 = 2880 + 840/672 = 3720/672 - 3720/672 simplified gives 155/28
- So, 90/21 + 40/32 = 155/28
In mixed form: 515/28
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