Add 7/28 and 9/40
7/28 + 9/40 is 19/40.
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,
7/28 = 7 × 10/28 × 10 = 70/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
9/40 = 9 × 7/40 × 7 = 63/280 - Add the two like fractions:
70/280 + 63/280 = 70 + 63/280 = 133/280 - 133/280 simplified gives 19/40
- So, 7/28 + 9/40 = 19/40
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