Add 21/28 and 45/32
1st number: 21/28, 2nd number: 1 13/32
21/28 + 45/32 is 69/32.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 28 × 8 = 224,
21/28 = 21 × 8/28 × 8 = 168/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
45/32 = 45 × 7/32 × 7 = 315/224 - Add the two like fractions:
168/224 + 315/224 = 168 + 315/224 = 483/224 - 483/224 simplified gives 69/32
- So, 21/28 + 45/32 = 69/32
In mixed form: 25/32
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