Add 45/70 and 10/40
45/70 + 10/40 is 25/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
45/70 = 45 × 4/70 × 4 = 180/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
10/40 = 10 × 7/40 × 7 = 70/280 - Add the two like fractions:
180/280 + 70/280 = 180 + 70/280 = 250/280 - 250/280 simplified gives 25/28
- So, 45/70 + 10/40 = 25/28
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