Add 24/40 and 72/21
1st number: 24/40, 2nd number: 3 9/21
24/40 + 72/21 is 141/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 21 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
24/40 = 24 × 21/40 × 21 = 504/840 - Likewise, for the 2nd fraction, since 21 × 40 = 840,
72/21 = 72 × 40/21 × 40 = 2880/840 - Add the two like fractions:
504/840 + 2880/840 = 504 + 2880/840 = 3384/840 - 3384/840 simplified gives 141/35
- So, 24/40 + 72/21 = 141/35
In mixed form: 41/35
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