Add 12/40 and 63/64
12/40 + 63/64 is 411/320.
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,
12/40 = 12 × 8/40 × 8 = 96/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
63/64 = 63 × 5/64 × 5 = 315/320 - Add the two like fractions:
96/320 + 315/320 = 96 + 315/320 = 411/320 - So, 12/40 + 63/64 = 411/320
In mixed form: 191/320
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