Add 72/84 and 56/40
1st number: 72/84, 2nd number: 1 16/40
72/84 + 56/40 is 79/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
72/84 = 72 × 10/84 × 10 = 720/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
56/40 = 56 × 21/40 × 21 = 1176/840 - Add the two like fractions:
720/840 + 1176/840 = 720 + 1176/840 = 1896/840 - 1896/840 simplified gives 79/35
- So, 72/84 + 56/40 = 79/35
In mixed form: 29/35
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