Add 72/56 and 21/30
1st number: 1 16/56, 2nd number: 21/30
72/56 + 21/30 is 139/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
72/56 = 72 × 15/56 × 15 = 1080/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
21/30 = 21 × 28/30 × 28 = 588/840 - Add the two like fractions:
1080/840 + 588/840 = 1080 + 588/840 = 1668/840 - 1668/840 simplified gives 139/70
- So, 72/56 + 21/30 = 139/70
In mixed form: 169/70
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