Add 40/50 and 7/21
40/50 + 7/21 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
40/50 = 40 × 21/50 × 21 = 840/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
7/21 = 7 × 50/21 × 50 = 350/1050 - Add the two like fractions:
840/1050 + 350/1050 = 840 + 350/1050 = 1190/1050 - 1190/1050 simplified gives 17/15
- So, 40/50 + 7/21 = 17/15
In mixed form: 12/15
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