Add 56/40 and 70/42
1st number: 1 16/40, 2nd number: 1 28/42
56/40 + 70/42 is 46/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
56/40 = 56 × 21/40 × 21 = 1176/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
70/42 = 70 × 20/42 × 20 = 1400/840 - Add the two like fractions:
1176/840 + 1400/840 = 1176 + 1400/840 = 2576/840 - 2576/840 simplified gives 46/15
- So, 56/40 + 70/42 = 46/15
In mixed form: 31/15
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