Add 72/21 and 4/35
1st number: 3 9/21, 2nd number: 4/35
72/21 + 4/35 is 124/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
72/21 = 72 × 5/21 × 5 = 360/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
4/35 = 4 × 3/35 × 3 = 12/105 - Add the two like fractions:
360/105 + 12/105 = 360 + 12/105 = 372/105 - 372/105 simplified gives 124/35
- So, 72/21 + 4/35 = 124/35
In mixed form: 319/35
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