Add 21/40 and 42/36
1st number: 21/40, 2nd number: 1 6/36
21/40 + 42/36 is 203/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
21/40 = 21 × 9/40 × 9 = 189/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
42/36 = 42 × 10/36 × 10 = 420/360 - Add the two like fractions:
189/360 + 420/360 = 189 + 420/360 = 609/360 - 609/360 simplified gives 203/120
- So, 21/40 + 42/36 = 203/120
In mixed form: 183/120
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