Add 28/32 and 21/20
1st number: 28/32, 2nd number: 1 1/20
28/32 + 21/20 is 77/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 20 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
28/32 = 28 × 5/32 × 5 = 140/160 - Likewise, for the 2nd fraction, since 20 × 8 = 160,
21/20 = 21 × 8/20 × 8 = 168/160 - Add the two like fractions:
140/160 + 168/160 = 140 + 168/160 = 308/160 - 308/160 simplified gives 77/40
- So, 28/32 + 21/20 = 77/40
In mixed form: 137/40
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