Add 20/40 and 45/64
20/40 + 45/64 is 77/64.
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,
20/40 = 20 × 8/40 × 8 = 160/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
45/64 = 45 × 5/64 × 5 = 225/320 - Add the two like fractions:
160/320 + 225/320 = 160 + 225/320 = 385/320 - 385/320 simplified gives 77/64
- So, 20/40 + 45/64 = 77/64
In mixed form: 113/64
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