Add 28/40 and 42/64
28/40 + 42/64 is 217/160.
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,
28/40 = 28 × 8/40 × 8 = 224/320 - Likewise, for the 2nd fraction, since 64 × 5 = 320,
42/64 = 42 × 5/64 × 5 = 210/320 - Add the two like fractions:
224/320 + 210/320 = 224 + 210/320 = 434/320 - 434/320 simplified gives 217/160
- So, 28/40 + 42/64 = 217/160
In mixed form: 157/160
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