Add 4/7 and 18/40
4/7 + 18/40 is 143/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
4/7 = 4 × 40/7 × 40 = 160/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
18/40 = 18 × 7/40 × 7 = 126/280 - Add the two like fractions:
160/280 + 126/280 = 160 + 126/280 = 286/280 - 286/280 simplified gives 143/140
- So, 4/7 + 18/40 = 143/140
In mixed form: 13/140
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