Add 72/20 and 90/32
1st number: 3 12/20, 2nd number: 2 26/32
72/20 + 90/32 is 513/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 20 × 8 = 160,
72/20 = 72 × 8/20 × 8 = 576/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
90/32 = 90 × 5/32 × 5 = 450/160 - Add the two like fractions:
576/160 + 450/160 = 576 + 450/160 = 1026/160 - 1026/160 simplified gives 513/80
- So, 72/20 + 90/32 = 513/80
In mixed form: 633/80
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