Add 10/28 and 8/40
10/28 + 8/40 is 39/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
10/28 = 10 × 10/28 × 10 = 100/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
8/40 = 8 × 7/40 × 7 = 56/280 - Add the two like fractions:
100/280 + 56/280 = 100 + 56/280 = 156/280 - 156/280 simplified gives 39/70
- So, 10/28 + 8/40 = 39/70
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