**New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 7 Rational Numbers Self Practice 3D Solution**

**(1) Find Each Sum**

(a) 1/2 + (7/-8)

(b) -1/4 + (7/-12)

(c) 43/5 + (-71/10)

(d) – 22/7 + (-19/30)

**(2) Subtract:**

(a) 1/13 from -5/26

(b) 8/-15 from -11/30

(c) 29/25 from -157/50

(d) 14/11 from 71/22

**(3) Add.**

(a) 7/-8 and 5/11

(b) 1~2/3 and -2~1/5

(c) -1~3/7 and 1~3/8

(d) -14~7/11 and -35~9/10

**SOLUTION Number 1,2 & 3:**

**(4) Subtract:**

(a) 3/2 from 5/-9

(b) -9/22 from -5/21

(c) -1~1/7 from -2~3/10

(d) -6~5/8 from 1~4/11

**SOLUTION Number 4:**

**(5) Find the sum.**

(a) 17/20 + (-19/25)

(b) 1~5/8 + 9/-12

(c) -2~5/6 + 2~9/14

**(6) Subtract:**

(a) -1~3/8 from 5~7/12

(b) -1~4/15 from 11/-20

(c) 4~7/10 from 18/-25

**(7) Simplify:**

(a) -10 + (-6~1/5)

(b) -19/80 – (-3)

(c) 18/-19 + 1~1/38 – 2~7/57

(d) -5/17 + (-2/5)

(e) 6 + 9/-11

(f) -5/18 + 17/-24 + 1~29/36 – 2

**SOLUTION Number 5, 6 & 7:**

**(8) Simplify:**

5/-9 – 7/-12 – 2 – (-5/-6)

**(9) Subtract (3/7 + 5/-9) from the negative of 8/-63**

**SOLUTION Number 8 & 9:**

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New mathematics today class 7

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