Add 72/40 and 84/64
1st number: 1 32/40, 2nd number: 1 20/64
72/40 + 84/64 is 249/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 64 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 40 × 8 = 320,
72/40 = 72 × 8/40 × 8 = 576/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
84/64 = 84 × 5/64 × 5 = 420/320 - Add the two like fractions:
576/320 + 420/320 = 576 + 420/320 = 996/320 - 996/320 simplified gives 249/80
- So, 72/40 + 84/64 = 249/80
In mixed form: 39/80
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Related: 72/80+84/64